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Results in Journal Dinamika Lingkungan Indonesia: 138

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Aras Mulyadi, Rasoel Hamidy, Musrifin Musrifin, Efriyeldi Efriyeldi, Romie Jhonnerie
Dinamika Lingkungan Indonesia, Volume 9, pp 25-31; https://doi.org/10.31258/dli.9.1.p.25-31

Abstract:
Mapping of coastline changes helps in coastal development and monitoring. The city of Dumai, on the east coast of Riau Province, has undergone significant and radical changes caused by the intervention of humans and nature over the past three decades. This study mapped and measured the rate of change of the coastline of Dumai City for 30 years. The Landsat (TM, and OLI) image series, 1990, 1999, 2008, and 2020 became a data source to generate coastlines through on-screen digitization techniques, then to study the temporal behavior of coastlines using the Digital Shoreline Analysis System (DSAS) and geographic information systems to describe the spatial and temporal variations of coastlines. The results showed that the coastline length during the observation ranged from 123,14 to 125,23 km, while the average accretion rate was 1.17 meters per year while the average abrasion rate was 2.04 meters per year. Those rates of change affected coastline expanded to the sea for 60,82 hectares and eroded 760,20 hectares coastline to the land.
Wiher Haeraty, Auldry Fransje Walukouw
Dinamika Lingkungan Indonesia, Volume 9, pp 58-63; https://doi.org/10.31258/dli.9.1.p.58-63

Abstract:
The condition of the waters in Papua is that there are various kinds of marine life in the body of water. One of the water bodies is the Kampwolker River which has a length of 14.15 m with an intlet river (a river that empties into Lake Sentani) which is located in the Kampwolker River watershed to Jl. 2 Expo Arena, Waena. It turns out that the Kampwolker River has a heavily polluted result with a score of 48. GPS and Arcgis Software Version 10.3 show three locations of the Kampwolker river, including: the intake Kampwolker River, the middle Kampwolker River, and the downstream Kampwolker River. Water quality was measured using the STORET method. Analysis of water samples obtained several samples of the most dominantly high chemical parameters, including Phosphate (PO4 – P) of 2.48 mg/l, Copper (Cu) of 0.235 mg/l, and Lead (Pb) of 0.15 mg/l. l. Kampwolker river pollution shows a color change to brown. This is due to the activities of densely populated community settlements, the agricultural industry, mineral C mining, and other industrial fields. Floods and erosion occur due to the ignorance of the community around the Kampwolker river to the importance of ecosystems and drinking water sources for the survival of the people in Jayapura City.
Dhymas Sulistyono Putro, Achmad Imam Santoso
Dinamika Lingkungan Indonesia, Volume 9, pp 45-49; https://doi.org/10.31258/dli.9.1.p.45-49

Abstract:
Palangka Raya City is one of the cities affected by COVID-19, where on November 11, 2021, and 13104 people were confirmed positive for COVID-19. The Health Protocol continues to be carried out in this New Normal era. The Health Protocol by washing hands with soap is an environmental issue that needs attention, namely the use of hand soap which reduces surface air quality. Hand soap contains chemicals that can increase the concentration of Chemical Oxygen Demand (COD). There is a need for laboratory testing of the COD parameters of surface water around handwashing facilities in public facilities in the era of new habits. The research was divided into laboratory tests on surface water parameters, namely pH, temperature, and COD as well as field surveys on the use of handwashing facility. The results of laboratory tests show that the quality of surface water on the COD parameter is below the quality standard. The use of handwashing facilities is not justified, because its use is only 19%. Along with the low use of handwashing facilities, hand washing facilities do not have an impact on decreasing surface water quality on the COD parameter, it can be an action to maintain surface water quality.
Novica Ayu Sari, Mayang Ananda Rini, Whindy Ndaru Oktaviani, Rarastika Nur Ghaida, Mega Mutiara Sari, I Wayan Koko Suryawan
Dinamika Lingkungan Indonesia, Volume 9, pp 17-24; https://doi.org/10.31258/dli.9.1.p.17-24

Abstract:
The waste composition in Boyolali Regency consists of 37.13% garden waste. The waste can be treated with a thermal process so that it can be reused for energy. The method of sorting waste with thermal technology consists of various types adapted to the gods. This study aimed to evaluate the most co-cog heat treatment processes for waste processing in Boyolali Regency. The determination process is carried out using a literature review, while the selection process uses the Analytical Hierarchy Process (AHP) method. The alternatives given in this research are carbonization, pyrolysis, and synergy processes. In the alternative selection, there are three criteria, namely mass balance, CO2 residue, and energy volatility. In terms of mass balance, the waste that the carbonization process can treat tends to be higher than that of the pyrolysis and incineration processes. Meanwhile, the carbonization process is better than pyrolysis and carbonization for wood waste for emission and energy requirements. The result of AHP shows that the carbonization process is suitable to be applied in Boyolali Regency. However, it is necessary to conduct further studies on non-technical aspects to strengthen alternative election results.
Saleha Saleha, Raldi Hendro Koestoer, Lukijanto Lukijanto
Dinamika Lingkungan Indonesia, Volume 9, pp 9-16; https://doi.org/10.31258/dli.9.1.p.9-16

Abstract:
Tidal flood and erosion are familiar phenomena in coastal areas that have an impact on the destruction of facilities and infrastructure (water, waste management, drainage) as well as environmental damage which is marked by a decrease in the quality of life of the community. However, the community persisted and chose to stay in the area and the population was increasing from year to year. Community resilience can be seen from several aspects: economic, social, infrastructure, and health. Building community resilience depends on social relationships, networks, and connectedness among communities. This paper reviews and compares the level of community resilience in Portsmouth (UK) and Semarang (Indonesia) to the erosion and flood disasters that hit these regions. With the descriptive comparative method, it is studied how the community's resilience to floods and abrasion is studied. The analysis results show that despite adequate defenses, Portsmouth’s resilience faces a higher economic risk of disasters and the resulting residual risks. Changes that occur on the coast of Semarang City have made people have to carry out a learning process to maintain their lives in the context of adaptation to the social, political, economic, and ecological environment in which the population lives.
Melinda Leony, Suzanna Ratih Sari
Dinamika Lingkungan Indonesia, Volume 9, pp 1-8; https://doi.org/10.31258/dli.9.1.p.1-8

Abstract:
This study aims to determine the principles of a green architecture approach that can support behavior change during the Covid-19 pandemic and to determine the arrangement of green architecture that can support behavior change during the Covid-19 pandemic in Batam City Square. This research method is to use literature study. The results show that in the Covid-19 pandemic maintaining environmental health is very crucial for our physical & mental health, and the concept of green buildings is a way to create environmentally or ecologically friendly buildings. To achieve a balance between systems, interactions between humans and the environment. Spatial planning and design using the green building method in Batam City Square is expected to be able to overcome and minimize adverse impacts on human health and the environment, as well as overcome Covid-19 promotion efforts. With a development concept based on keeping your distance and washing your hands, an artistic and useful appearance for prevention can be maximized by architectural concepts through careful analysis and concepts in every planning and design.
 
Yossi Oktorini, Eko Prianto, Vini Volcherina Darlis, Rahmatdillah Rahmatdillah, Miswadi Miswadi,
Dinamika Lingkungan Indonesia, Volume 9, pp 50-57; https://doi.org/10.31258/dli.9.1.p.50-57

Abstract:
The need for data and information is an essential issue in sustainable mangrove management. The availability of data from authorized institutions is essential considering the reliability and consistency of the data, both to process techniques and data availability. This study used national mangrove and landcover data produced by the Ministry of Environment and Forestry through online services. 11 data series (2000 – 2019) obtained through the Representational State Transfer (REST) Application Programming Interface (API) service. Application of spatial analysis of vector data through geoprocessing tools and attribute data management to determine the distribution and changes in mangrove cover and the factors that trigger changes. Estimated data indicate a 13.4% decline in mangroves in Riau Province, with an average decline of 2,495.9 hectares/year. Over 98% of mangrove changes into other functions are caused by human behavior towards mangroves; we need a genuine attitude to preserve the mangroves of Riau Province for the future
Rosyadi Rosyadi, Agusnimar Agusnimar, Hisra Melati
Dinamika Lingkungan Indonesia, Volume 9, pp 32-38; https://doi.org/10.31258/dli.9.1.p.32-38

Abstract:
Leachate, as liquid waste is rich in nutrients, can be used as organic material for the microalgae culture such as Chlorella sp. This study aims to determine the effect of different concentrations to of leachate on the abundance of Chlorella sp populations. The observation was conducted at the laboratory of Microalgae, Agriculture faculty, Islamic University of Riau. The method used in this study was an experimental method using a randomized design; one factor, namely the different concentrations of leachate with five levels, were 5%, 10%, 15%, 20%, and 25%/l of water and three replications. The testing organism in this study was phytoplankton Chlorella sp. The culture container used was a gallon with 20 L of capacity and a water volume of 16 L. The measured parameters were cell abundance, specific growth rate, and water quality. The obtained results showed that the highest abundance of Chlorella sp at a concentration of 25% at 7,322,222 cells/ml, and the peak on day 16, the lowest concentration of 5%, was 2,580,556 cells/ml. On the sixth day, the highest specific growth rate was at a concentration 5% at 0.195/day, and the lowest was 20% at 0.077/day.
Siti Fatonah, Rasoel Hamidy, Aras Mulyadi, Efriyeldi Efriyeldi
Dinamika Lingkungan Indonesia, Volume 9, pp 64-71; https://doi.org/10.31258/dli.9.1.p.64-71

Abstract:
Mangrove forest in Sungai Apit Sub District, Siak District, Riau is one of the mangrove ecosystems in Riau Province which has experienced a reduction in land area and is the widest in Siak Regency. This study aims to determine the perceptions and attitudes of the community in the protection and management of mangroves. The research was conducted in three villages in Sungai Apit Sub District, namely Rawa Mekar Jaya, Sungai Rawa and Mengkapan. Data was collected through observation and interviews with the community using mangroves. The results showed that the perception of the community in Sungai Apit towards the function and management of mangroves is classified as very good, while the attitude of the community towards the protection and management of mangroves is classified as good. The perception and attitude of the people of Rawa Mekar Jaya and Meng Kapan are better than the people of Sungai Rawa. Community involvement in rehabilitation activities is generally only at the time of the project and due to wages. The community has a high awareness of utilizing mangrove resources in a sustainable manner. The community has a high awareness of the protection and management of mangroves, but their involvement in rehabilitation activities requires money to compensate for the time and energy used. Therefore, alternative activities are needed that can increase funding sources and increase funding sources in local institutions related to mangroves.
Yessi Harnani, Rasoel Hamidy, Sukendi Sukendi, Dedi Afandi
Dinamika Lingkungan Indonesia, Volume 9, pp 39-44; https://doi.org/10.31258/dli.9.1.p.39-44

Abstract:
Pneumonia is a type of lower respiratory tract infection and the main cause of under-five mortality, especially in developing countries, with a mortality rate of 3 million each year. Pneumonia cases in children under five in Pelalawan Regency are quite high, namely 72.8% in 2018. Pneumonia is also influenced by climatic condi-tions and seasons. Parasites and disease vectors are very sensitive to climatic factors, especially temperature, humidity, and rainfall. The purpose of this study was to determine the effect of season on the incidence of pneumonia in children under five in Pelalawan District. This type of research is analytic observational with a cross sectional approach. The study population was all patients with pneumonia under five who were recorded in the registration of 12 Puskesmas in Pelalawan Regency in 2018-2019. The research sample uses total sam-pling. Data analysis uses the Vector Autorgressive (VAR) method on time series data with time level being monthly data. The results showed that the trend of the number of pneumonia cases fluctuated approximately every 2 months, this was caused by the influence of the season, namely the rainy season and dry season. Mostly in the rainy season the number of pneumonia cases tends to experience an increasing trend. Based on statisti-cal tests, it is known that seasonal variables (rainfall, rainy days, humidity and temperature) have no signifi-cant effect on the incidence of pneumonia in children under five, but the R Square value in the modeling above is quite good, namely 0.655, meaning that 65.5% of the diversity of pneumonia cases can be explained. by these variables while the rest is explained by other variables outside the model. For this reason, it is hoped that the Puskesmas will campaign for the '5 M' program, especially in the rainy season (opening ventilation, entry of light, entry of air, maintaining house cleanliness and increasing body immunity). It is suggested to the Pelalawan District Health Office to monitor climate factors on an ongoing basis in the context of the pro-gram to eradicate pneumonia in children under five.
Esthi Kusdarini, Abd. Malik, Lakon Utamakno, Agus Budianto
Dinamika Lingkungan Indonesia, Volume 8, pp 100-106; https://doi.org/10.31258/dli.8.2.p.100-106

Abstract:
Gold mining on mining communities supports economic life for the societies. On the other hands, these activities are not only support the economic but also give bad effects to the environment. Some people are still using amalgamation process to gold ore process which has the potential to spread Hg concentration in the main area. Spatial distribution of Hg concentration was found in this study. The purpose of this research was identifying the contamination of Hg concetration in three villages of society’s mining gold areas in Kertajaya Sukabumi, West Java. Those three villages were Cigadog Village, Pondok Tilu Citamiang Village, and Kiara 2 Village. Hg concentration distribution map was obtained several samples which were taking 6 soil samples in Cigadog village, 5 soil samples from Pondok Tilu Citamiang Village, and 4 soil samples in Kiara 2 Village. Those samples were analysed for Hg concentration using AAS (Atomic Absorption Spectrophotometer) method. Inverse Distance Weight method was used as Data processing and it was helped by ArcGIS software. The result showed that soil samples from Cigadong village contained Hg concentration of 0.28 - 2.84 ppm, 83% samples were critically polluted, and the contaminated areas were 5.888 hectares. Whilst, soil samples from Pondok Tilu Citamiang Village contained Hg concentration of 0.14 - 1.26 ppm, 80% samples were critically polluted, and the polluted areas were 1.476 Ha. Then, soil samples from Kiara 2 Village contained Hg concentration of 0.67-6.19 ppm, 100% samples were critically polluted, and the contaminated area was 0.040 hectare. The findings of the contaminated area and the pollutant level in mining societies in Kertajaya Village, Sukabumi could be used as initial input for the efforts to restore the Hg polluted environment.
Mayarni Mayarni, Mimin Sundari, Resa Vio Vani
Dinamika Lingkungan Indonesia, Volume 8, pp 138-146; https://doi.org/10.31258/dli.8.2.p.138-146

Abstract:
This study aims to determine the management of Lake Napangga tourism objects in Kepenghuluan Tanjung Medan, Rokan Hilir Regency, which contributes to the economy of the surrounding community. Lake Napangga is one of the lakes located in the Rokan Hilir area which has promising tourism potential if managed properly. Therefore, the role of BUMDes as the manager of Lake Napangga should be able to become a spirit in developing this lake tourism object to empower the economy of the village community, but the management of this tourist attraction is not only influenced by the seasonal agenda but also the Coronavirus Disease pandemic that emerged in 2020 This study choosing the type of qualitative research with a case study approach, where data collection is done by observation and interviews. After the data and information are obtained, it will be analyzed in depth with triangulation techniques. The results of this study found that the management of Lake Napangga tourism objects has not run optimally by the BUMDes in this case due to the inconsistency in the number of tourists visiting Lake Napangga, the inconsistent seasonal agenda, the lack of promotional activities and the COVID-19 Pandemic that appeared regularly. Suddenly disrupting the sources of income for people who depend on this Lake Napangga tourist attraction. This reality is what makes community economic empowerment in order to increase income still not running optimally. And aspects of sustainability in this case are needed to develop the tourism potential of Lake Napangga in the face of unforeseen conditions, in this case COVID-19 becomes an example of problems that must be faced in order to run the economy of the community and maximize the management of potential tourist attractions.
Auldry F Walukow, Triwiyono Triwiyono, Albert Lumbu
Dinamika Lingkungan Indonesia, Volume 8, pp 154-161; https://doi.org/10.31258/dli.8.2.p.154-161

Abstract:
The problem that occurs in Lake Sentani is that it has been contaminated by parameters of TSS, BOD, Pb, Cu, and DO respectively with valuesof 76 mg / L, 4.63 mg / L, 0.035 mg / L, 0.03 mg / L, and 5.72 mg / L because these parameters have exceeded the quality standard according to environmental regulations. This study aims to determine the assimilation capacity of TSS and PO4 parameters and analyze pollution control models in the Tlaga Ria sub-watershed. The research method used to determine the assimilation capacity is a linear regression equation and in analyzing the pollution control model the interpretative structural modeling method is used. The results showed that the TSS assimilation capacity value in Lake Sentani was -12,700 tons/month. The value of water quality in Lake Sentani is above the value of the assimilation capacity, this shows that Lake Sentani has been polluted by TSS parameters. Meanwhile, the value of PO4 parameter assimilation capacity is 44.36 tons/month and since 2016 Lake Sentani has been unable to conduct self purification. The key elements of the Sentani Lake pollution control constraints in the Tlaga Ria watershed are weak implementation of environmental regulations, differences in objectives among stakeholders, differences in objectives between administrative areas, weak support of business owners, conflict of interests, and weak enforcement of regulations.
Diana Azizah, Rasoel Hamidy, Mubarak Mubarak, Efriyeldi Efriyeldi
Dinamika Lingkungan Indonesia, Volume 8, pp 147-153; https://doi.org/10.31258/dli.8.2.p.147-153

Abstract:
Bintan Island has a high potential for bauxite mining. Many ex-mining areas have not been reclaimed properly, resulting in erosion and accumulation of heavy metals Pb and Cr which are high in the sediment (red-mud) and deposited in the roots of mangrove forests on the coast of Bintan. Rhizophora mucronata is one of the species that dominates the Bintan mangrove forest. The purpose of this study was to determine the phytoaccumulation of Pb and Cr metals in R. mucronata in the former bauxite mining area ofBintan Island. This research was conducted by survey, digested and analysed using Atomic Absorption Spectrophotometer (AAS). The concentrationof Pb and Cr in the sediment, as well as the roots, stems and leaves of R. mucronata were used for the analysis of phytoaccumulation types. The results of the Pb concentration test were higher than Cr. Based on the sampling location, the concentration of Pb metal accumulation in the sediment is Tembeling
Efriyeldi Efriyeldi, Aras Mulyadi, Joko Samiaji
Dinamika Lingkungan Indonesia, Volume 8, pp 113-122; https://doi.org/10.31258/dli.8.2.p.113-122

Abstract:
The research was conducted in July - October 2020. Collection of data A. alba growth and abundance of benthic epifauna was carried out in the mangrove rehabilitated area of Kedabupat village, Kepulauan Meranti Regency. The aims of this study was to analyze the growth (stems height and diameter) of the mangrove A. alba species as a result of rehabilitation and abundance of benthic epifauna in the area. The method used in this research was a survey method, where data was obtained by directly to the research location. The data collected was data on the height and diameter of A. alba stems, density of macro epifauna species, and water quality in the field, then followed by analysis of water and sediment samples in the laboratory. The results showed that the average increace in height of the stem by zone was 6.45-12.93 cm/month, meanwhile the average value of the increase in stem diameter by zone is 1.53-1.85 mm/month. There were 13 epifauna benthic species from 2 classes namely Gastropod and Malacostraca from mangrove rehabilitation. Gastropod class that was Littoraria melanostoma, Nerita balteata and Sphaerassiminea miniata; from the malacostraca class that was Uca coarctata, Metopograpsus latifrons, Ceonobita cavipes, and Clibanarius longitarsus. Benthic epifauna abundance values average ranged from 31.33-52.22 ind/m2.
Rosmayani Rosmayani, Annisa Mardatillah
Dinamika Lingkungan Indonesia, Volume 8, pp 123-128; https://doi.org/10.31258/dli.8.2.p.123-128

Abstract:
Business actors' competition in capturing market share has made it essential for business actors to implement sustainable competitive advantage through local wisdom and innovation. It is expected to improve product quality sustainably. This study aims to analyze sustainable competitive advantage based on local wisdom and innovation in small and medium enterprises of Riau Malay traditional food in Pekanbaru. The research method used is qualitative with observation, interview, and literary techniques. The sampling technique used was purposive sampling on ten business actors and triangulation as the analysis technique in this study. This study's findings are that local wisdom factors and product innovation are a source of sustainable competitive advantage in the micro and small business sector of Riau Malay traditional food in Pekanbaru. Although innovations made in traditional Riau Malay food products, this has not made the product more homogeneous but still thick with its uniqueness and authenticity. The resources owned's heterogeneity is reflected in local knowledge, local skills, local resources, and local values in traditional Riau Malay food products, a differentiator that competitors cannot imitate.
Salma Afifah, Edisty Anindira, Elvara Hana, Haldi Priya, M. Jalaludin, Nur Aini, Nurul Fadlilatus, Satti Wagistina
Dinamika Lingkungan Indonesia, Volume 8, pp 107-112; https://doi.org/10.31258/dli.8.2.p.107-112

Abstract:
Since 2009, Tlekung Village has been used as a Final Disposal Site for rubbish, which has the main problem, namely the problem of the sting smell due to a pile of trash. The purpose of this research is to find out how the TPA Tlekung manages waste and overcomes the problem of the smell of rubbish and how the community participates in waste management. The method in this research was a survey method with analysis techniques using descriptive methods. The results of the research showed that the community had participated in the form of rubbish shelter with a percentage of 56.6%, rubbish collection with a percentage of 56.6%, and the level of community participation was high with a percentage of 93.3%. The conclusion of the community in Tlekung Village is the level of participation is high in reducing the smell of rubbish and participating in the management of waste into methane gas. From the results of community participation in helping to manage waste, the community gets the free flow of methane gas from TPA Tlekung.
Erna Tri Asmorowati, Diah Sarasanty
Dinamika Lingkungan Indonesia, Volume 8, pp 91-99; https://doi.org/10.31258/dli.8.2.p.91-99

Abstract:
Mojokerto is one of the leading regions in East Java Province This of course has consequences for growth in all fields, especially industry and housing. So that it will have an influence either directly or indirectly on the growth of other supporting facilities growth in various fields leads to increased demand for water due to climate change, several springs in Mojokerto district have decreased by 60% from their original condition. This study aims to predict future water needs with the influence of changes in population, the effect of increasing the number of industries and facilities, both commercial and non-commercial using a dynamic system so that it can be used as a basis for water resource management decisions. In analyzing a complex system that works with real conditions, it is very risky and costly, therefore we need a model that can represent the conditions of the existing system. The stages in the research are as follows: 1. Secondary data collection in the study area which includes: Population data, data on the number of public facilities, data on the number of hotel rooms, data on the number of hospital rooms, data on rice fields, data on the number of livestock, data on the area of tourism and data on the number of markets; (2) Data Analysis; (3) System Dynamic Analysis;(4)Simulation of water demand prediction in the study area;(5) Model validation with the structure validation test and the AVE and AME validation tests. The simulation model for the prediction of water demand in Mojekerto Regency based on a dynamic system is declared valid because it has fulfilled the structure test and validation test both AVE and AME From the results of the scenario simulation applied, it was able to save water by 30% for domestic water needs and 92% for non-domestic water needs. It is necessary to make a model to determine the availability of existing water resources so that a model of water resources balance in Mojokerto Regency is compiled.
Tengku Said Razai, Fitria Ulfah, Febrianti Lestari, Dony Apdillah, Ita Karlina, Fadhliyah Idris, Try Febrianto
Dinamika Lingkungan Indonesia, Volume 8, pp 129-137; https://doi.org/10.31258/dli.8.2.p.129-137

Abstract:
The development of aquaculture in the Marine Protected Area (KKP) has to recognize the sustainability and the balancing of the ecosystem in that area. It causes limited rights of users who want to develop their business, where the issuance of permits and business management regulations is an obligation that must be followed by aquaculture business developers in the KKP area. The study aimed was to formulate the technical directions in developing the potential for aquaculture business in the Marine Protected Area of Datok Bandar (KKPD) at Lingga Regency. The method used in this research is a descriptive quantitative using analysis of the carrying capacity of the environment for aquaculture, water quality parameters, and a participatory approach. The results showed that the potential area to be developed for aquaculture was 3,736.01 ha. However, based on the carrying capacity analysis, only 268,420 ha or 7.2% from the existing potential can be utilized for aquaculture. Furthermore, based on the water quality measurements for aquaculture, the KKPD area was divided into 3 designations groups of aquaculture areas, namely the KJT, KJA, and seaweed. The number of aquaculture business units that were allowed in this area was 16,776 units consisting of 10,066 small business units and 6,710 medium business units with 7 types of superior fish. The limitation of land area and some business units in conservation areas were important to ensure the sustainability of the environment in the future. The implication of this research could be used as a basis for issuing aquaculture business permits, and to ensure that small-scale aquaculture fishermen have a large proportion. In addition to ensuring the existence of local communities who were generally small farmers, conservation areas were very vulnerable to environmental changes, so the risk factors and impacts of business utilization were important to consider.
Ricky Yadi, Eddifa Rahman, Vetrio Monandes
Dinamika Lingkungan Indonesia, Volume 8, pp 86-90; https://doi.org/10.31258/dli.8.2.p.86-90

Abstract:
The needs for added value of agricultural products is increasing, both in the form of health benefits and of reducing pollution waste. The sorting-out fruits that are just wasted can still be used as materials that have added value. In general, fruits contain glucose which is the basic ingredient in processing of bioethanol. Even though the quality has decreased, it still contains glucose which can then be fermented into bioethanol or organic fertilizer. Recently, the pharmaceutical and food and beverage industries require a large supply of bioethanol for further processing according to the industrial needs. Meanwhile, agricultural land is increasingly promoting organic farming. The objective of this activity is to produce new products from fruit waste into bioethanol and organic fertilizers that are useful for both the community and the government so that they can be used as the right solution to reduce environmental pollution and create new business opportunities. Bioethanol processing method uses Saccharomyces cerevisiae as a biocatalyst and uses an EM4 activator to produce organic fertilizers. This activity produces an output product in the form of bioethanol 46.78 % and organic fertilizer which contain 1% N.
Afrizal Afrizal, Sujianto Sujianto, Zulkarnain Zulkarnain, Firdaus Firdaus
Dinamika Lingkungan Indonesia, Volume 8, pp 80-85; https://doi.org/10.31258/dli.8.1.p.80-85

Abstract:
Sustainable development is development that pays attention to the three main aspects; they are economy, social and environment aspects. Riau Province is one of the province that have great quantities of corporate, either foreign or local corporate. Sustainable corporate social responsibility in this province, is obligated by district regulation, no. 6, 2012. The development of companies in Riau Province increased in the oil and natural gas, plantation, forestry and mining sectors. The existence of the company give positive impact such as the raising of the economics matter and increasing the local income by the responsibility fell on the economic, social and environment condition where the company operate. The purpose of this research is: to study how is the responsibility of CPI Ltd. In Riau Province in the effort to support economy, social and sustainable development. The method used in this research is the use of descriptive qualitative method. Qualitative method is used for describing the authentic relationship between variables in the research problem empirically by the big amount of simultaneous influence sharpening together and toward value pattern be faced. CSR program done in Riau Province is the program in social, economics and environmental program. The CSR become the effort to support sustainable development because the advantages can be felt by the society for today and future
Agus Sutikno, Aslim Rasyad, Bintal Amin, Radith Mahatma
Dinamika Lingkungan Indonesia, Volume 8, pp 65-72; https://doi.org/10.31258/dli.8.1.p.65-72

Abstract:
Pests that are often a household problem in several cities in Indonesia are mosquitoes, rats, cockroaches, flies. Causes of settlement pests are dirty environments, food scraps, rubbish, and waterlogged gutters / ditches. The presence of pests in the house causes occupants to control pesticides. Pesticides are used primarily to control mosquitoes, ants, flies, cockroaches, mice and termites. This research is a descriptive research that aims to explain, detail and make a description of a phenomenon or object under study. The target population in this study is households residing in Pekanbaru City, namely in the Districts of Tenayan Raya, Sail and Pekanbaru City with three clean, medium and dirty categories. Determination of the sample is done purposively with multistage sampling technique. The sample was determined purposively with multistage sampling technique and the total sample was 101 households. The data obtained were nominal, ordinal and ratio, analyzed the relationship between these data using chi-square. The results showed that the physical environmental factors of housing settlements that affect the presence of residential pests are dirty environments caused by garbage and dirty drainage / ditches. Meanwhile, biotic environmental factors in residential housing that affect the presence of pests are plants grown in residential areas in the form of ornamental plants and unkempt shade plants. The dirty condition of the residential environment is due to the lack of environmental cleaning activities and the not yet routine transportation of waste from residential homes to landfills. In addition, there is less care for ornamental plants and shade in the yard, such as pruning.
Syahrial Syahrial, Riri Ezraneti, Bintal Amin, Nur Safira, Dodi Fan Halen Siregar
Dinamika Lingkungan Indonesia, Volume 8, pp 1-11; https://doi.org/10.31258/dli.8.1.p.1-11

Abstract:
The study of ecological characteristics, health conditions and the level of vulnerability of mangrove degradation when initiating North Rupat as a Regional Aquatic Conservation Area (KKPD) was conducted in July 2018 with the aim of future baseline data and comparison. Data collection on the condition of mangrove vegetation is carried out by making line transects and plots drawn from the reference point (outermost mangrove stands) in a direction perpendicular to the coastline to the mainland. The results of the study showed that 12 identified species. The diversity index and dominance are relatively low (H’ ≤ 2.0 and 0 < C ≤ 0.5), while the uniformity is classified as stable (0.75 < E ≤ 1). For the density of mangroves the highest category of trees is at Station 4 (2525 ind/ha ± 638.15), while the density of saplings and seedlings at Station 1 (2800 ind/ha ± 873.48 and 50000 ind/ha ± 17638.34), where Xylocarpus granatum is the dominant species in the tree and seedling category (Importance Value Index/IVI 191.74% and 240.80%), while Avicennia alba was for the saplings category (IVI 216.01%). In the main land part of the North Rupat KKPD area, the mangroves' health condition was increasingly threatened by destruction compared to the small islands around it. However, overall the level of vulnerability of mangrove degradation in the initiating area of North Rupat KKPD is still relatively low.
Dukut Tri Sadono, Darwis An, Zulkarnain Umar
Dinamika Lingkungan Indonesia, Volume 8, pp 29-41; https://doi.org/10.31258/dli.8.1.p.29-41

Abstract:
This study aims to analyze the factors that affect income levels, estimate economic value, analyze financial feasibility and study alternative policies for the development of goldfish (Cyprinus carpio) cultivation in floating net cages in an effort to develop fishery potential in Koto Panjang Hydroelectric Reservoir, Kampar Regency, Riau Province. The sampling location is determined based on (purposive sampling). The method used in this research is a survey method. Determination of the population in the study using the Census method. Factors that significantly influence the income of goldfish cultivators (Cyprinus carpio) at the real level α = 5% are the yield (HP) kg / unit and the number of cages (JK) unit. The surplus value of goldfish cultivation producers (Cyprinus carpio) is IDR 42,102,269,258.00 / year. The results of the analysis of the financial feasibility value (NPV) of Rp. 77,136,617.10, - / unit for the volume of cages 6 x 6 x 4. Whereas for the volume of cages 6 x 8 x 4, it has a value (NPV) which is much greater than Rp. . 173,394,632.39, - / unit. The second value (NPV) is positive based on the criteria for a feasible business investment if the value (Net B / C) is greater than 1, the value (IRR) is the same as 12.00% for both cage size categories. The sensitivity analysis shows that the cultivation of goldfish (Cyprinus carpio) KJA in the Koto Panjang Hydroelectric Power Plant is more sensitive to changes in decreased production compared to changes in decreasing price of carp feed (Cyprinus carpio). Based on the Exponential Comparative Analysis (MPE), it is found that the best alternative development policies to be developed and implemented are capital strengthening and improvement of facilities and infrastructure related to fish cultivation development.
Desri Yesi, Oktaf Juairiyah
Dinamika Lingkungan Indonesia, Volume 8, pp 12-16; https://doi.org/10.31258/dli.8.1.p.12-16

Abstract:
The poverty level and the level of access for cleaning water are two interesting variables to analyze. One type of feasible analysis was used scatter diagram. South Sumatra Province with its 17 municipalities has different characteristics in terms of poverty levels and access to clean water for the people. Overall, using the scatter diagram, in 2018 the areas with low poverty levels however high levels of access to clean water (Quadrant I) were Lahat and Penukal Abab Lematang Ilir Regency. The regions with low levels of access to clean water and low levels of poverty (Quadrant II) are Empat Lawang, Banyuasin, Ogan Komering Ulu Selatan and Prabumulih. The areas with high levels of access to clean water and high poverty (Quadrant III) are Musi Rawas Utara, Musi Banyuasin, Ogan Komering Ilir, Musi Rawas and Ogan Ilir Regency. The areas with low levels of access to clean water and high poverty (Quadran IV) are Lahat and Penukal Abab Lematang Ilir regency.
Angga Prasetia, Auldry F Walukow
Dinamika Lingkungan Indonesia, Volume 8, pp 42-47; https://doi.org/10.31258/dli.8.1.p.42-47

Abstract:
This study aims to determine the current status of lake water quality in the Gelanggang Expo area using the Pollution Index (IP) method. It is found that there has been pollution in Lake Sentani with high concentrations of certain pollutants, such as Nitrite as NO2-N (0.06 - 0.15 mg/L), Phosphate as PO4-P (0.2 - 0.45 mg/L), Sulfide as S-H2S (0.002 - 4.26 mg/L), Cadmium (0.01 - 0.3 mg/L), Chromium valence 6 (0.05 - 0.26 mg/L), Copper (0.02 - 2.15 mg/L), Zinc (0.05 - 0.5 mg/L), Phenolic compounds (1 - 9.53 μg/L), and free chlorine (0.03 - 2, 1 mg/L). The concentration of these substances has exceeded the quality standard set by the government through PP 82 of 2001 concerning water quality management and water pollution control. The status of the lake water quality in the Gelanggang Expo area is declared moderately polluted with an IP value of 6.78. Sentani lake pollution is caused by eight parameters that have exceeded the quality standard, namely temperature, BOD, COD, Sulfide, Pb, Cu, Phenol, and free chlorine.
Nawari Nawari, Isjoni Isjoni, Zulkarnaini Zulkarnaini
Dinamika Lingkungan Indonesia, Volume 8, pp 17-28; https://doi.org/10.31258/dli.8.1.p.17-28

Abstract:
North Mareje Mountain Forest Area (NMMFA) is one of important areas for ecotourism development in Lombok Island. Currently integrated ecotourism management plan (IEMP) is not available for this area, it has caused land degradation and natural disasters. To support sustainable IEMP establishment, this study was conducted with objectives to analyze land suitability and assessing the environmental carrying capacity of ecotourism development. The study conducted in NMMFA, Serage Village, Central Lombok, NTB during January - March 2020. The data used in this study include attractiveness, landscape naturalness, bio-geophysical limiting factors, accessibility, optimal space requirements and length time of tourist activities. Secondary data compiled from various sources and primary data collected by field observations and interviews. Land suitability analysis used weighted linear combination (WLC), environment carrying capacity analyzed by Douglas Method (Zacarias et al., 2011) and the evaluation conducted by t-test. Based on the analysis, explained that land suitable area for ecotourism in NMMFA is 1.235,2 Ha (75,8% of total area). Effective carrying capacity (ECC) is 32.729 visitors/day. The important indicators contributed to land suitability include soil conservation, tree diversity, visibility and natural attractiveness. T-test analysis shows that the actual landuse for ecotourism smaller than potential area, the average number of tourist visits in the area also smaller than the ECC. It can be concluded if the current land utilization have been meet with land suitability and environmental carrying capacity.
Budi Azwar, Defri Roza, Husni Thamrin, Elfiandri Elfiandri
Dinamika Lingkungan Indonesia, Volume 8, pp 57-64; https://doi.org/10.31258/dli.8.1.p.57-64

Abstract:
This study was carried out in the Kenegerian Rumbio customary forest area in Kampar Regency, Riau Province. The purpose of this study was to analyze priority strategic alternatives in sustainable management of Kenegerian Rumbio customary forest prohibitions in Kampar Regency. This research is descriptive research with quantitative research design. With the help of experts, FGD (focus group discussion) is carried out to obtain a priority hierarchy structure. Analysis method using AHP (analysis hierarchy process) technique. The research was conducted in the Area of Rumbio Kenegerian Customary Prohibition Forest Kampar Regency, Riau Province, starting from March to December 2019. The results of the study was identified that the alternative main priority strategy in the management of customary prohibited forests is the empowerment of forest area communities, following the subsequent strategy of strengthening traditional institutions. Furthermore alternative strategies for optimizing economic benefits and expanding cooperation networks. In the implementation of community empowerment strategies in forest areas, synergy between stakeholders in policies, programs, operational steps, goals, targets and targets of periodicity needs to be built.
Aras Mulyadi, Efriyeldi Efriyeldi, Burhan Marbun
Dinamika Lingkungan Indonesia, Volume 8, pp 48-56; https://doi.org/10.31258/dli.8.1.p.48-56

Abstract:
Bandar Bakau Mangrove Ecotourism is one of the most attractive natural tourist destinations in Dumai City. As a reference for future development, this study aims to analyze the mangrove ecotourism development strategy of Bandar Bakau Dumai. Surveys to collect primary data have been carried out in the field and on managers of Bandar Bakau Mangrove Ecotourism in June - November 2020. Meanwhile, secondary data were collected from the Dumai City Government and related literature. The data collected were analyzed descriptively, and to formulate a development strategy carried out using a SWOT analysis approach (Strengths, Weaknesses, Opportunities, Threats) from the identification of Internal factors (IFAS) and external factors (EFAS). To make mangrove ecotourism in Bandar Bakau Dumai a natural tourism place that can compete in the future, 4 (four) development strategies have been formulated, namely: 1) Development of Supporting and Supporting Facilities for Mangrove Ecotourism in Bandar Bakau Dumai, 2) Development of Mangrove Ecotourism Products in Bandar Bakau Dumai, 3) Strengthening the Role of Stakeholders in the Development of Mangrove Ecotourism in Bandar Bakau Dumai, and 4) Development of Conservation and Environmental Mitigation of Mangrove Ecotourism in Bandar Bakau Dumai.
Pricillia Putri Ervian Sitompul
Dinamika Lingkungan Indonesia, Volume 8, pp 73-79; https://doi.org/10.31258/dli.8.1.p.73-79

Abstract:
Managing hazardous medical waste in COVID-19 era has its own challenges. Acknowledging such challenges, the provincial Government of West Java suggested every health care facility in West Java to collaborate with PT Jasa Medivest or other companies that provide waste management services. Commonly, they use incinerator machines as their main tools to demolish the hazardous medical waste. Although it is a commonly used method to demolish medical waste, there are several issues that need to be marked. Therefore, this study aims to observe and analyze the advantages and disadvantages of the suggestion made by the Provincial Government from the perspective of environmental and economic sustainability. This study also proposes several alternative methods to overcome the problems by reflecting on methods that other countries had successfully conducted. This study uses a normative legal research method, in which secondary data are obtained from library research. The data obtained are analyzed and explained using descriptive methods. The results revealed that in the terms of environmental sustainability, the use of incineration method has the potential to perpetuate air pollution. Meanwhile, in terms of financial efficiency, collaborating with PT Jasa Medivest or other companies that provide waste management services incurs a fairly high cost. Hence, it is necessary to evaluate and consider other waste management options.
Yanwar Yusup Rukmana, Muhamad Ridwan, Zufialdi Zakaria, Dicky Muslim, Nadhirah Seraphine
Dinamika Lingkungan Indonesia, Volume 7; https://doi.org/10.31258/dli.7.2.p.62-69

Abstract:
Corrosion is the biggest problem for equipment that utilised metal, including infrastructure. Corrosion is degradation of metal quality due to the chemical reaction of a metal with the surrounding environment, including soil. Important indicators that contribute to the classification of the rate of corrosivity in soils are water content, pH, types of minerals, soil resistivity values and other chemical-physical parameters. The research area is in Anggadita Village, Klari District, Karawang Regency, West Java Province. Drilling and sampling locations are approximately 300 meters from the Citarum river. The article aimed to investigate between physical and chemical characteristics (soil texture, type of resistivity, pH) of weathered sediments of the Citarum river flood plain to the classification of soil corrosivity. Soil classification in the study area is fine grained and classified into silt with high plasticity (MH-ML) and clay with high plasticity (CH). The results of the analysis of the distribution of potential soil corrosivity in the study area indicate that the level of soil corrosivity is at a high level of corrosive to very high corrosive
Marlon Ivanhoe Aipassa, Zainuddin Zainuddin, Harjuni Hasan
Dinamika Lingkungan Indonesia, Volume 7, pp 102-110; https://doi.org/10.31258/dli.7.2.p.102-110

Abstract:
Kartanegara Regency and Samarinda City East Kalimantan. From the results of the research and evaluation of the reclamation plan documents and RKTTL, as well as the reclamation implementation report, the Backfilling plan for 2017 is 35.80 Ha and is realized at 22.36 Ha, so that the percentage of success rates reaches 62,46%. The land management and land revegetation plan for 2017 is 62.12 Ha and is realized at 10.26 Ha, so that the percentage of success rate is 16.52%. Revegetation of PT BBE land for the last 3 (three) years from 2015-2017 with a plan of 165.17 Ha and realized as much as 129.05 Ha, resulting in a percentage of success rate of 78.13%, but when compared with the total realization of reclamation (land arrangement ) amounting to 109.06 Ha, realization of revegetation 129.05 Ha, then the success rate of revegetation of reclaimed land is 118.33%. This shows that PT BBE's commitment to environmental management is quite good. Based on the results of laboratory analysis, water quality at all outlet points of PT BBE compliance still meets environmental quality standards of pH 6-7 (BML 6-9). While the soil quality of top soil does not meet environmental quality standards (soil pH 3.68). Based on the overall evaluation results, the percentage of successful reclamation implementation at PT BBE is 78.43% (categorized as moderate).
Wahyudi Andrito, Syafruddin Nasution, Efriyeldi Efriyeldi
Dinamika Lingkungan Indonesia, Volume 7, pp 70-80; https://doi.org/10.31258/dli.7.2.p.70-80

Abstract:
Mangrove ecosystems are one of three important ecosystems in the coastal areas that supports global warming mitigation efforts. The existence of mangrove forests is needed to reduce the increased CO2 concentrations in the atmosphere. However, the rise of the water temperatures and sea levels indirectly affects the presence and condition of mangrove forests in coastal areas. The purpose of this study is to determine the condition of the mangrove community on the East Coast of Jemaja, Anambas Archipelagoes Regency. The survey method was used in this study and a series survey activities were conducted for a quadrant transect with a size of 10m by 10m in December 2019 - March 2020.The result shown that the five mangrove species were identified, such as Rhizophora apiculata, R. mucronata, Bruguiera gymnorrhiza, Ceriops tagal and Xylocarpus granatum. R. apiculata dominates with an important value index of 123.12%. While, the average density of mangroves and saplings in the study area was 3155 ± 785 individuals/ha and the average canopy cover was 84.03 ± 3.11%. With this finding, it can be concluded that the condition of mangroves in the East Coast of Jemaja is very dense and still in a good condition.
Fauzan Ramadan, Farhan Ramdhani, Deni Efizon, Nofrizal Nofrizal
Dinamika Lingkungan Indonesia, Volume 7, pp 129-136; https://doi.org/10.31258/dli.7.2.p.129-136

Abstract:
Trawl has the size a mesh size a small size pockets of the cod end. This allows the trawl fishing gear to potentially be a fishing gear that is not selective about the size of the fish and the species that are targeted for its catch. If this fishing gear is left, its existence will eventually have a negative impact on the sustainability of fish resources, especially in coastal waters. The purpose of this study is to calculate the composition and proportion of main catches, bycatch and discarded catches. It is expected that knowing the composition and proportion of the main, by-product and discarded catches can provide an overview of the pressure on stocks and sustainability of fisheries resources in the waters where trawl is operated. The method used in this study is a survey method. A series of survey activities were carried out directly in the field to identify and count the types of species caught by trawlers. Based on the percentage of main catch, by-catch and discard per type, it Matuta planipes are the dominant species caught by trawlers (23.65%). The main catch Parapenaeus longirostris 15.92%. In addition, the main catch caught were Parapenaeopsis sculptilis (9.787%), Penaeus merguiensis (0.646%), Metapenaeus brevicornis (10.118%), Penaeus indicus (0.029%) and Squilla mantis (0.153%). Percentage of bycatch reaches 2.245% of 10 species caught and discarded catches reach 61.103% of 25 species caught.
M.Sc Thamrin Thamrin
Dinamika Lingkungan Indonesia, Volume 7, pp 116-121; https://doi.org/10.31258/dli.7.2.p.116-121

Abstract:
Environmental degradation has occurred in various ecosystems in the world. This also carries out in the sea and even sometimes threaten human life, whether directly or indirectly. Likewise, events in the marine environment associated with poisoning, caused by toxic algae such as dinoflagellates. To see the progress the survey research was conducted on Thallasia sp to see the growth of toxic dinoflagellates Gambierdiscus, Ostreopsis and Prorocentrum in the Nirwana Coast Padang. The data analysis uses two-way statistics with Turkey's Advanced Test. The results showed that Gambierdiscus and Ostreopsis almost the same number and were still low. High striking results occurred on Prorocentrum which differed markedly from both Gambierdiscus and Ostreopsis. This results also significantly different among stations.
Irnawati Siregar, Zelmi Sriyolja
Dinamika Lingkungan Indonesia, Volume 7, pp 111-115; https://doi.org/10.31258/dli.7.2.p.111-115

Abstract:
The purpose of this study is to plan creative and educative children's play spaces, and to introduce social life at an early age. The problem in this study is that there is no playing environment for children under five and elementary school age, so that it affects the play patterns and creativity of children in their neighborhoods. Children are far from social life, tend to play games using electronic and virtual media. This research method is a qualitative descriptive method, employing surveys in research locations, interviews, observation of children's behavior, and playing patterns. The results of this study are in the form of creative and educative children's play planning by designing play spaces that can interact socially with children of different ages and businesses, as well as revive traditional games of regions that are almost extinct.
Aryo Bayu Wibisono, Mike Nur Kartika Sari, Andhika Putra Pradana, Satriansyah Akhlaqul Karima, Ibrahnovan Suly Trizky Darma, Ardanny Nanda Saputra
Dinamika Lingkungan Indonesia, Volume 7, pp 122-128; https://doi.org/10.31258/dli.7.2.p.122-128

Abstract:
Cleanliness and waste management were common problems in city planning. The factors of the city's problems have been a varieticalistic discovery, ranging from flooding to a health factor from an unclean environment. The waste management in Surabaya is good enough but not all equally equal, especially in suburbs. This overcrowding undermines waste management, whereas Surabaya has already created a clear path to organizing the waste until mode of bus transportation that the payment based in exchange waste. It is considering it has not been able to enable people in suburbs to understand and implement the discipline on waste management. To bring the people in diciplines requires interesting methods, and motivate the people to do so. In the scholarly of design visual communication this method is called a social campaign, the objective in this research of this social campaign, to make the most nonessential organic and unorganic waste to be usefull. Data are taken from coastal area in Surabaya specifically in Tambak Wedi, Kenjeran. The population density and unclean enviroment in this area become a proper place to study. The methods used in this study are qualitative, with observational approaches to people, social experiment trials and socialization activities. This research is an applied public study, whose hope through this research that people are able to change their habits and understand about waste management
Andina Ramadhani Putri Pane, Ali Suman
Dinamika Lingkungan Indonesia, Volume 7, pp 81-88; https://doi.org/10.31258/dli.7.2.p.81-88

Abstract:
The high demand for shrimp commodities will increase catching to spur production so that it will affect the shrimp population. This scientific study will discuss the spawning season of banana shrimp (Penaeus merguiensis), catch size, and environmental conditions of Dumai and surrounding waters. This research was conducted from April to December 2018 using survey methods around the waters of Dumai, Riau. Data collection was carried out monthly on 4,677 banana shrimps assisted by enumerators. The analysis was carried out on the relationship between carapace length and body weight, sex ratio, gonad maturity level, and catch size. The condition of the aquatic environment that influences the process of reproduction becomes a comparison in determining management efforts. Banana shrimp size structure 18-60 mm, dominant at 28 mm and negative allometric growth patterns. The genital ratio shows that female shrimp are more dominant than males and the spawning season lasts throughout the year with peaks in June and December. The length at first capture was 34.5 mm with the length at first maturity was 30.8 mm (Lc> Lm), meaning that it had spawned before being capture. However, the polluted water environment can interfere with the process of growth and population growth even though various environmental parameters are still within normal limits. So the thing to do is to close the shrimp catching area in June and December, not catch in the spawning area, the size of the shrimp that can be caught is 31 mm and protect the aquatic environment from pollution.
Shinta Elystia, Indah Kartika Zulfa, Sri Rezeki Muria
Dinamika Lingkungan Indonesia, Volume 7, pp 95-101; https://doi.org/10.31258/dli.7.2.p.95-101

Abstract:
Palm oil mill effluent contains pollutants and has high content of organic matter. The treatment process of palm oil mill effluent generally with open pond system that requires extensive land and a long contact time. To reduce the number of ponds needed in the process of palm oil mill effluent, microalgae Chlorella sp. by using palm mill effluent which contains organic material as a source of nutrition for microalgae cultivation media Chlorella sp. to improve the efficiency of COD removal in palm oil mill effluent. In this research, variations of the concentration of Fe and Co micronutrients were combined with variations concentrations of Fe (0.3; 0.5 and 0.7) mg/L and Co (1 and 2) mg/L in flat-photobioreactors were carried out for 7 days with lighting by using sunlight. The results showed that at a combination of 0.5 mg/L Fe + 0.2 mg/L Co, the highest microalgae cell growth was 6 x 106 cell/ml and the highest removal efficiency of COD was 83.3%.
Saibun Sitorus, Yerwanto Ilang, Rudy Agung Nugroho
Dinamika Lingkungan Indonesia, Volume 7, pp 89-94; https://doi.org/10.31258/dli.7.2.p.89-94

Abstract:
Analysis of Heavy Metal Content of Pb, Cd, Cu, As in Water, Sediments and Bivalves in Coastal Waters of Balikpapan Bay. The study aims to analyze the levels of heavy metals (Pb, Cd, Cu, As) in water, sediment and Bivalvia and to determine the adsorption, bioconcentration factors in sediments and Bivalvia. This research is in the form of field survey and laboratory analysis, where the results are quantitative descriptive and analyzed statistically multivariate.The results of laboratory analysis showed that the levels of heavy metals in water ranged between (Pb 0.064-0.142 mg/L), (Cd 0.088-0.112 mg/L), (Cu 0.035-0.056 mg/L) and (As 0.022-0.026 mg/L). Sediment (Pb 2,555-2,616 mg/Kg), (Cd 2,433-2,609 mg/Kg), (Cu 1,289-1,553 mg/Kg), (As 0,329-0,496 mg/Kg) and Bivalvia (Pb 1,708-2,076 mg/Kg) ), (Cd 1.569-2.416 mg/Kg), (Cu 1.078-1.264 mg/Kg) and (As 0.297-0.449 mg/Kg). Heavy metal content of Pb, Cd, Cu and As in the sediment is greater than water or Bivalvia. The results of the statistical analysis partially showed that the levels of heavy metals Pb, Cd, Cu and As differed significantly between all study samples (water, sediment and Bivalvia). Whereas the observation stations (Kariangau industrial area, the village on the water and the PT. Pertamina area) did not differ significantly. The results of the analysis of adsorption and bioconcentration factors on the levels of heavy metals Pb, Cd, Cu and As in sediments (Pb 17.99-42.25), (Cd 22.75-28.67), (Cu 26.49-36.83 ) and (As 13.71-19.08). In Bivalvia (Pb 14.15-32.44), (Cd 14.00-26.55), (Cu 21.14-34.43) and As (13.50-29.88).
Dinamika Lingkungan Indonesia, Volume 7, pp 8-12; https://doi.org/10.31258/dli.7.1.p.8-12

Abstract:
Salah satu faktor utama yang menyebabkan masih tingginya angka TB paru adalah kepadatan hunian dan sosial ekonomi. Tujuan penelitian ini untuk mengetahui Hubungan kepadatan hunian dan sosial ekonomi dengan kejadian penyakit TB paru Kelurahan Pecung Kecamatan Belakang Padang Kota Batam (Wilayah Kerja Puskesmas Belakang Padang) Tahun 2019.Penelitian ini menggunakan cross sectional study, teknik pengambilan sampel secara simple random sampling dimana sampel berjumlah 90 sampel, data primer diperoleh dengan alat bantu kuisioner, data analisis dengan bivariat yang menggunakan uji chi-square (>0,05).Hasil penelitian terdapat hubungan kepadatan hunian dengan penyakit TB paru ditunjukan dengan nilai p=0,000 (pV0,05). Kesimpulannya bahwa terdapat hubungan kepadatan hunian dengan penyakit TB paru, hubungan sosial ekonomi dengan penyakit TB paru, Diharapkan promosi kesehatan oleh Puskesmas kepada masyarakat untuk meningkatkan kesadaran hidup dan lingkungan sehat.
Miswadi Miswadi
Dinamika Lingkungan Indonesia, Volume 7, pp 1-7; https://doi.org/10.31258/dli.7.1.p.1-7

Abstract:
The breakwater construction to overcome abrasion at Pambang Pesisir has resulted in the formation of land accretion which expanded the coastal land and giving rises to issues in public management. This research was aimed to formulate the alternative management of land accretion. A field survey and light unmanned aerial vehicle (drone) data acquisition were used to observe the accretion formed. Furthermore, Analytical Hierarchy Process (AHP) was used to generate the alternative managements of land accretion. Accretion land was estimated around 80,359.4 m2and based on coastal area protection, living creature’s habitat, fisheries resources, tourism and business development benefit, social community supporting and sustainability of social interaction criteria’s, this area had great potential to be managed with use it for mangrove planting or rehabilitation sites in ecological land-based management.
, Indry Aryana Aryana
Dinamika Lingkungan Indonesia, Volume 7, pp 31-35; https://doi.org/10.31258/dli.7.1.p.31-35

Abstract:
Seluruh kematian yang disebabkan oleh ISPA mencakup 20% -30% per tahun (Rasmaliah, 2004). faktor risiko yang berkonstribusi terhadap terjadinya ISPA adalah antara lain gizi kurang, ASI Eksklusif rendah, polusi udara dalam ruangan, kepadatan, cakupan imunisasi campak rendah, dan BBLR (WHO, 2007). Kepadatan hunian dalam rumah perlu diperhitungkan karena mempunyai peranan dalam penyebaran mikroorganisme di dalam lingkungan rumah atau kediaman Dari 20 Puskesmas yang ada di kota Pekanbaru, Puskesmas yang paling tertinggi angka kejadian ISPA pada tahun 2015 yaitu di Puskesmas Simpang Tiga dengan presentase 58,9%.Tujuan penenilitian ini ialah Untuk mengetahui factor lingkungan yang berhubungan dengan kejadian Infeksi Saluran Pernapasan Akut (ISPA) Pada Balita Di Wilayah Kerja Puskesmas RI Simpang Tiga Kota Pekanbaru dengan pendekatan kuantitatif dan metode crsosectional. Adapun jumlah populasi sebanyak 1658 balita tahun 2015 dengan Sampel berjumlah 94 orang. Hasil yang diperoleh terdapat hubungan antara paparan asap rokok dengan kejadian ISPA pada balita di Wilayah Kerja Puskesmas RI Simpang Tiga, artinya yang mendapat paparan asap rokok dari salah satu anggota keluarganya yang merokok berisiko 3 kali untuk terkena ISPA dibandingkan dengan yang tidak mendapat paparan asap rokok dari salah satu anggota keluarganya yang merokok. Tidak terdapat hubungan antara ventilasi rumah dengan kejadian ISPA pada balita di Wilayah Kerja Puskesmas RI Simpang Tiga Kota Pekanbaru Tahun 2016. Terdapat hubungan antara kepadatan hunian dengan kejadian ISPA pada balita di Wilayah Kerja Puskesmas RI Simpang Tiga, artinya yang kepadatan hunian rumahnya tidak memenuhi syarat berisiko 8 kali untuk terkena ISPA dibandingkan dengan kepadatan hunian rumahnya yang memenuhi syarat.
Dinamika Lingkungan Indonesia, Volume 7, pp 58-61; https://doi.org/10.31258/dli.7.1.p.58-61

Abstract:
Based on a report by the Directorate General of Pollution and Environmental Damage Control of the Ministry of Environment and Forestry (KLHK), in 2015 nearly 68 percent or the majority of the quality of cistern water in 33 provinces in Indonesia was in a heavily polluted status. The main source of river pollutants is domestic or household waste. Human behavior is the biggest cause of environmental damage. The purpose of this study is to link knowledge with people's behavior in disposing household waste in the Sago River. This type of research is quantitative research with a cross-sectional approach. The independent variable in this study is people's knowledge in disposing household waste. The population in this study were all housewives who lived in the area around the Sago river, as many as 974 people. The samples in this study were 284 people and the sampling technique was Stratified Random Sampling. The instruments used were questionnaires and observation sheets. Primary data obtained through questionnaires and observations while secondary data from Sukaramai Kelurahan Pekanbaru data. Data analysis used chi square test with a = 0.05. The results showed that there was a relationship between knowledge and the behavior of disposing garbage with a value a
, Icu Yuanda Sari
Dinamika Lingkungan Indonesia, Volume 7, pp 17-21; https://doi.org/10.31258/dli.7.1.p.17-21

Abstract:
Post-traumatic stress disorder or PTSD is an anxiety disorder that develops through exposure to a traumatic event, stressful situations, severe torture, and natural or catastrophic disasters due to human negligence. These disorders could be include 3 main symptoms, namely the feeling of re-experiencing, the desire to avoid all stimuli associated with traumatic events (avoidance), and increased awareness of the arousal, which is experienced over a period of a month or more . This study aims to find a description of the symptoms of PTSD (Post Traumatic Stress Disorder) due to flooding on Meranti Pandak Village RT 02 RW 012 Rumbai Pesisir District of Pekanbaru. Types of quantitative research and descriptive design. The study was conducted on 16 June - 01 July 2019 in Meranti Pandak Village, Rumbai Pesisir District with 45 respondents. Data collection techniques using a questionnaire. This study shows that from 45 respondents studied there were symptoms of repeated experiences 27 people (60.0%) experienced, avoidance symptoms 37 people (82.2%) experienced, negative symptoms of change 10 people (22.2%) experienced, symptoms of stimulation changes 34 people (75.6%) experienced, who experienced all the symptoms of PTSD 3 people (6.7%), so it can be concluded that found the symptoms of PTSD (Post Traumatic Stress Disorder) due to flooding.
, Dwi Astuti, Muhamad Mustakim
Dinamika Lingkungan Indonesia, Volume 7, pp 36-42; https://doi.org/10.31258/dli.7.1.p.36-42

Abstract:
Coal mining activities openly cause the formation of mine pits and are currently used by the community for fish farming. This research aims to determine the histopathological status of gills, heavy metal content (Pb, Cd, and Fe) in tilapia fish (Oreochromis niloticus) and water bodies ponds. Samples were taken by purposive sampling technique at four locations with different ages, namely Senong Pit (5 years), Goldstar Pit (10 years), Bendang Galactic Pit (15 years) and Control. Measuring heavy metal content was carried out using AAS. Fish gills are processed by the paraffin method and hematoxylin-eosin staining. The results of the analysis of the heavy metal content of Pb, Cd, and Fe in surface water in all ponds are below the Class II Water quality standard based on the Provincial Regulation of East Kalimantan No. 02 of 2011. The value of heavy metal concentrations in sediments is higher than in water. Pb content in Tilapia (O.niloticus) meat from all ponds is between 2.92 to 4.41 mg / kg, while Cd is between 0.02 to 0.03 mg / kg. The Pb metal content status of the results of this study is above the limit of heavy metal contamination determined by BPOM Decree No. 5 of 2018 which is 0.02 mg / kg, while the heavy metal Cd is still below the specified limit of 0.10mg / kg.The total content of Fe metal ions in fish meat is 83.64 sd 144.92 mg/kg bw These results indicate the total content of Fe ions is far above the safe limit standard for the presence of Fe contaminants in all food sources based on FAO / WHO (2011) of 0.8 mg/kg. Fish originating from all post-mining pond ages indicate damage to the histological structure gills which are characterized by damage to epithelial cells, changes in secondary lamella structures characterized by hyperplasia, destruction of secondary lamella structures and filaments, lamella aneurism and secondary lamella fusion. The results showed that histopathologically and bioaccumulation of heavy metals in fish meat from post-mining ponds showed unhealthy conditions
Dinamika Lingkungan Indonesia, Volume 7, pp 13-16; https://doi.org/10.31258/dli.7.1.p.13-16

Abstract:
Abstrac :Plastic pollution / waste has an impact that will disturb the stability of the ecosystem, especially aquatic organisms such as fish. The main source of plastic contamination comes from household waste that is not managed properly, especially in coastal areas that make the sea as a place of final discharge. Plastic pollution is currently the main problem that is accepted by the environment, especially water. Plastic will dissolve in the waters and will form small sizes (micro-plastic) impacting biota, including fish. Fish including aquatic organisms that can not distinguish between food and plastic particles clearly, thus providing an effect on digestion and growth. The results showed the growth rate of silver Pompanoo with the highest plastic concentration will cause slower growth, the control treatment is the best growth yield compared to treatments that have a plastic content mixed with feed. Growth of weights with the highest concentration of plastic particles is 0,48 gr/week, length growth is 0.75 cm / week, and survival is 69.17% and shows the growth and survival rates are worse or there is a tendency to worsen with an increase in the concentration of plastic contamination . Plastic particles consumed by fish are not digested properly and can even cause the growth response of fish to be slow even to death.
Emy Leonita, , Putri N Sari, Pratiwi Herman
Dinamika Lingkungan Indonesia, Volume 7, pp 43-52; https://doi.org/10.31258/dli.7.1.p.43-52

Abstract:
A hospital can apply Green Hospital concept in order to reduce even hospital environment and global environment pollution. The amount of patients at Dr. M. Djamil Padang hospital is 250.000-350.000 every year which make hospital generates medical waste ±400 kg/day on giving health service. Therefore, Dr. M. Djamil Padang hospital should have integrated and sustainable solid medical waste management. Objective of this research is to analyze the management of solid medical waste management at Dr. M. Djamil Hospital on creating Green Hospital concept. Study of this research is qualitative study. This research was done on March-June 2018. There are 9 informants which determined by purposive sampling technique. Data is collected with in-depth interview, observation, and document reviewing. Data is analyzed by data reduction, presentation of data, and conclusion. Data validity used source triangulation and method triangulation.Input component: hospital has writtern procedure in solid medical waste management, cost and staff regarding solid medical waste management is sufficient, all facilities is appropriate except for temporary storage for medical waste. Process component: waste segregation is done based on its character. Waste transportation to temporary storage uses trolly but doesn’t use special lane. Hospital cooperates with third party on exterminating medical waste with incinerator. Output component: overall, implementation of solid medical waste management at Dr. M. Djamil Hospital Padang has been in accordance with the Indonesian health regulation No. 1204/2004 and hospital has done the efforts towards green hospital by doing appropriate solid medical waste management. Based on the Indonesian health regulation No. 1204/2004, solid medical waste management at Dr. M. Djamil hospital is done properly. But there are still problems found, such as temporary storage is not in accordance with the standard. To achieve Green Hospital, hospital can fix broken facilities and apply waste reduction program.
, Desy Aryanti, Sri Andika
Dinamika Lingkungan Indonesia, Volume 7, pp 53-57; https://doi.org/10.31258/dli.7.1.p.53-57

Abstract:
Community settlements in a city have a very important role in providing services in the field of life. Increasing the population in a strategic land in urban areas will cause urban problems, especially population density, building irregularities and slums. This increase in population is due to economic, legal, social and cultural aspects, all centered in the city so that many rural communities flock to the city to improve their economy. Seberang Palinggam Sub-District, South Padang District, Padang City is one of a strategic location because it is close to the port, trade and service area. This strategic location caused many people who settled there. As a result, Seberang Palinggam Village is included in 23 slum areas in Padang City, based on Padang Mayor Decree No. 163 of 2014. This study aims to determine the right direction in the structuring of the slum environment with the Eco-Settlement approach that develops from the concept of sustainable development. The target being developed is to identify the characteristics of slums in villages across Palinggam using the Qualitative Descriptive Method, Analysis of the factors that led to the development of slums using Delphi. From this analysis, it is obtained an outline based on influential factors in the form of adding and improving the quality of sanitation infrastructure, clean water, drainage and healthy houses, increasing the carrying capacity of the environment and community resources, empowering the community's economy, and improving the quality of institutions and awareness of existing policies related to slum environment management.
, Era Yudistira, Atika Lusi Tania
Dinamika Lingkungan Indonesia, Volume 7, pp 22-30; https://doi.org/10.31258/dli.7.1.p.22-30

Abstract:
Waste Problem will not cause pollution if it is managed properly. More over it can provide economic benefit for the community. The Waste Bank "Cangkir Hijau" has a way to grow its independence and role so as to be able to prove its existance provides economic benefits for community and the preservation of environmental cleanliness. This Paper discusses the innovation strategy of the role and independence of the Waste Bank ‘Cangkir Hijau’ in realizing environmental cleanliness and economic benefits for the surrounding community. This research was conducted with descriptive qualitative. The results of the study incicate the independence and role of the waste bank Cangkir Hijau be formed because it is done by applying the principles of social movement and creativity. Including improving managerial skills, innovation of various types of waste saving, and promoting waste bank, thus providing incentives on additional income for community and creating a cleaner enviornment.
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