Air Pollutant Emissions from Vehicles and Their Abatement Scenarios: A Case Study of Chengdu-Chongqing Urban Agglomeration, China

Xiaowei Song, Yongpei Hao and Xiaodong Zhu
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Xiaowei Song: College of Resources and Environment, Shanxi University of Finance & Economics, Taiyuan 030006, China
Yongpei Hao: College of Resources and Environment, Shanxi University of Finance & Economics, Taiyuan 030006, China
Xiaodong Zhu: State Key Laboratory of Pollution Control & Resources Reuse, School of the Environment, Nanjing University, Nanjing 210046, China

Sustainability, 2019, vol. 11, issue 22, 1-19

Abstract: Vehicular emissions have become one of the important sources of air pollution, and their effective control is essential to protect the environment. The Chengdu-Chongqing Urban Agglomeration (CCUA), a less developed area located in the southwest of China with higher vehicle population and special topographic features, was selected as the research area. The aims of this study were to establish multi-year vehicular emission inventories for ten important air pollutants in this area and to analyze emission control policy scenarios based on the inventories. The results showed that the ten vehicular pollutant emissions had differences during the past decade, and CO 2 and NH 3 increased markedly between 1999 and 2015. Chengdu and Chongqing were the dominant contributors of vehicular emissions in the CCUA. Eight scenarios based on these inventories were designed and the alternative energy replacement scenario was studied from the life-cycle perspective. Compared with the business as usual scenario, elimination of substandard vehicles scenario is the most effective policy to control NO x , PM 2.5 , PM 10 , and CH 4 emissions; the radical alternative energy replacement scenario could decrease the vehicular NMVOC, CO 2 , N 2 O, and NH 3 emissions; the elimination of motorcycles scenario could decrease the vehicular CO emissions; and the raising fuel standards scenario could reduce vehicular SO 2 emissions significantly (by 94.81%). The radical integrated scenario (combining all of the reduction control measures mentioned above) would achieve the maximum emission reduction of vehicular pollutants CO, NMVOC, NO x , PM 2.5 , PM 10 , CO 2 , N 2 O, and NH 3 compared with any scenario alone.

Keywords: vehicular pollution; emission inventory; scenario analysis; the CCUA (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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