Primary Air Pollutants Emissions Variation Characteristics and Future Control Strategies for Transportation Sector in Beijing, China
Open Access
- 17 May 2020
- journal article
- research article
- Published by MDPI AG in Sustainability
- Vol. 12 (10), 4111
- https://doi.org/10.3390/su12104111
Abstract
Air pollutant emissions from vehicles, railways, and aircraft for freight and passenger transportation are major sources of air pollution, and strongly impact the air quality of Beijing, China. To better understand the variation characteristics of these emissions, we used the emission factor method to quantitatively determine the air pollutant emissions from the transportation sector. The emission intensity of different modes of transportation was estimated, and measures are proposed to prevent and control air pollutants emitted from the transportation sector. The results showed that air pollutant emissions from the transportation sector have been decreasing year by year as a result of the reduction in emissions from motor vehicles, benefiting from the structural adjustment of motor vehicles. A comparison of the emission intensity of primary air pollutants from different modes of transportation showed that the emission level of railway transportation was much lower than that of road transportation. However, Beijing relies heavily on road transportation, with road freight transportation accounting for 96% of freight transportation, whereas the proportion of railway transportation was low. Primary air pollutants from the transportation sector contributed significantly to the total emissions in Beijing. The proportion of NOX emissions increased from 54% in 2013 to 58% in 2018. To reduce air pollutant emissions from the transportation sector, further adjustments and optimization of the structure of transportation in Beijing are needed. As for the control of motor vehicle pollutant emissions, vehicle composition must be adjusted and the development of clean energy must be promoted, as well as the replacement of diesel vehicles with electric vehicles for passenger and freight transportation.Funding Information
- National Natural Science Foundation of China (21806012)
This publication has 26 references indexed in Scilit:
- Vehicle emissions in a middle-sized city of China: Current status and future trendsEnvironment International, 2020
- Exploring the Spatial Variation Characteristics and Influencing Factors of PM2.5 Pollution in China: Evidence from 289 Chinese CitiesSustainability, 2019
- High-resolution mapping of vehicle emissions of atmospheric pollutants based on large-scale, real-world traffic datasetsAtmospheric Chemistry and Physics, 2019
- Identification and quantification of particulate tracers of exhaust and non-exhaust vehicle emissionsAtmospheric Chemistry and Physics, 2019
- Assessment of Co-benefits of vehicle emission reduction measures for 2015–2020 in the Pearl River Delta region, ChinaEnvironmental Pollution, 2017
- On-road traffic emissions of polycyclic aromatic hydrocarbons and their oxy- and nitro- derivative compounds measured in road tunnel environmentsScience of The Total Environment, 2016
- Scenario analysis to vehicular emission reduction in Beijing-Tianjin-Hebei (BTH) region, ChinaEnvironmental Pollution, 2016
- Source contributions of urban PM2.5 in the Beijing–Tianjin–Hebei region: Changes between 2006 and 2013 and relative impacts of emissions and meteorologyAtmospheric Environment, 2015
- Historic and future trends of vehicle emissions in Beijing, 1998–2020: A policy assessment for the most stringent vehicle emission control program in ChinaAtmospheric Environment, 2013
- Global Scenarios of Air Pollutant Emissions from Road Transport through to 2050International Journal of Environmental Research and Public Health, 2011