Journal article
Aggravated air pollution and health burden due to traffic congestion in urban China
Atmospheric chemistry and physics, Vol.23(5), pp.2983-2996
03/07/2023
DOI: 10.5194/acp-23-2983-2023
Abstract
Vehicle emissions are regarded as a primary contributor to air pollution and related adverse health impacts. Heavy traffic congestion increases traffic flow and thus produces more O-3 precursor emissions, leading to more adverse air quality issues. Although the development of a vehicle emission inventory has received great concern and continuous efforts, limitations still exist. For example, real-time diurnal variations and increases in emission rates due to traffic congestion are not well understood. In this study, we developed a new temporal allocation approach in transportation emissions to investigate the impact on air quality and health burden due to traffic congestion in China in 2020. Both real-time congestion-level data and emission correction factors were considered in the approach. Results show that traffic congestion aggravates air pollution and health burden across China, especially in the urban clusters such as the North China Plain and Sichuan Basin. In these regions, the average annual increases in fine particulate matter (PM2.5) and ozone (O-3) could be up to 3.5 mu gm(-3) and 1.1 ppb, respectively. The excess PM2.5 and O-3 attributed to the traffic congestion also induce an additional 20 000 and 5000 premature deaths in China, respectively. In major cities, the increased rate of premature mortality caused by traffic congestion may reach 17.5 %. Therefore, more effective and comprehensive vehicle emission control policies or better planning of the road network should be established to reduce traffic congestion and improve air quality in China.
Details
- Title: Subtitle
- Aggravated air pollution and health burden due to traffic congestion in urban China
- Creators
- Peng Wang - Fudan UniversityRuhan Zhang - Fudan UniversityShida Sun - Tsinghua UniversityMeng Gao - Hong Kong Baptist UniversityBo Zheng - Tsinghua UniversityDan Zhang - Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Peoples R ChinaYanli Zhang - Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Peoples R ChinaGregory R. Carmichael - University of IowaHongliang Zhang - Fudan University
- Resource Type
- Journal article
- Publication Details
- Atmospheric chemistry and physics, Vol.23(5), pp.2983-2996
- DOI
- 10.5194/acp-23-2983-2023
- ISSN
- 1680-7316
- eISSN
- 1680-7324
- Publisher
- Copernicus Gesellschaft Mbh
- Number of pages
- 14
- Grant note
- Y2021096 / Youth Innovation Promotion Association of the Chinese Academy of Sciences Natural Science Foundation of China (NSFC); National Natural Science Foundation of China (NSFC) 448720203 / DFG-NSFC Sino-German AirChanges project 2022YFC3703000 / National Key RD Program 42077194/42061134008/42022023 / National Natural Science Foundation of China; National Natural Science Foundation of China (NSFC) Ministry of Science and Technology of China (MOST); Ministry of Science and Technology, China 2020B1111360001/2020B1212060053 / Guangdong Foundation for the Program for Science and Technology Research
- Language
- English
- Date published
- 03/07/2023
- Academic Unit
- Civil and Environmental Engineering; Nursing; Chemical and Biochemical Engineering
- Record Identifier
- 9984380368002771
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