Thermal Discomfort Levels, Building Design Concepts, and Some Heat Mitigation Strategies in Low-Income Communities of a South Asian City
Open Access
- 4 March 2021
- journal article
- research article
- Published by MDPI AG in International Journal of Environmental Research and Public Health
- Vol. 18 (5), 2535
- https://doi.org/10.3390/ijerph18052535
Abstract
Heat stress provokes thermal discomfort to people living in semiarid and arid climates. This study evaluates thermal discomfort levels, building design concepts, and some heat mitigation strategies in low-income neighborhoods of Faisalabad, Pakistan. The outdoor and indoor weather data are collected from April to August 2016 using a weather station installed ad hoc in urban settings, and the 52 houses of the five low-income participating communities living in congested and less environment-friendly areas of Faisalabad. The discomfort index values, related to the building design concepts, including (i) house orientation to sunlight and (ii) house ventilation, are calculated from outdoor and indoor dry-bulb and wet-bulb temperatures. Our results show that although June was the hottest month of summer 2016, based on the monthly mean temperature of the Faisalabad region, the month of May produced the highest discomfort levels, which were higher in houses exposed to sunlight and without ventilation. The study also identifies some popular heat mitigation strategies adopted by the five participating low-income communities during various heat-related health complaints. The strategies are gender-biased and have medical, cultural/customary backgrounds. For example, about 52% of the males and 28% of the females drank more water during dehydration, diarrhea, and eye infection. Over 11% and 19% of the males and females, respectively, moved to cooler places during fever. About 43% of the males and 51% of the females took water showers and rested to combat flu (runny nose), headache, and nosebleed. The people did not know how to cure muscular fatigue, skin allergy (from a type of Milia), and mild temperature. Planting trees in an area and developing open parks with greenery and thick canopy trees can be beneficial for neighborhoods resembling those evaluated in this study.Funding Information
- Higher Education Commision, Pakistan (NO.5632/PUNJAB/NRPU/R$D/HEC/2016)
- Canadian Network for Research and Innovation in Machining Technology, Natural Sciences and Engineering Research Council of Canada (n/a)
This publication has 36 references indexed in Scilit:
- Performance Evaluation of Modern Building Thermal Envelope Designs in the Semi-Arid Continental Climate of TehranBuildings, 2013
- Four principles for achieving good indoor air qualityIndoor Air, 2013
- Neighborhood Effects on Heat Deaths: Social and Environmental Predictors of Vulnerability in Maricopa County, ArizonaEnvironmental Health Perspectives, 2013
- The effect of tree shade and grass on surface and globe temperatures in an urban areaUrban Forestry & Urban Greening, 2012
- Effects of thermal environment on sleep and circadian rhythmPublished by Springer Science and Business Media LLC ,2012
- The Impact of Heat Islands on Mortality in Paris during the August 2003 Heat WaveEnvironmental Health Perspectives, 2012
- Urban and rural mortality rates during heat waves in Berlin and Brandenburg, GermanyEnvironmental Pollution, 2011
- Heat-related mortality: a review and exploration of heterogeneityJournal of Epidemiology and Community Health, 2009
- Prediction of the indoor temperatures of an urban area with an in-time regression mapping approachJournal of Exposure Science & Environmental Epidemiology, 2007
- Temperature Stability of Traditional and Low-cost Modern Housing in the Eastern Cape, South AfricaJournal of Building Physics, 2006