« Previous AbstractAssessment of background ozone concentrations in China and implications for using region-specific volatile organic compounds emission abatement to mitigate air pollution    Next Abstract"Microbial diversity, culture conditions, and application effect of YSJ: A composite microbial system for degradation of Yanshan ginger branches and leaves" »

Sci Total Environ

Title:		Co-effect assessment on regional air quality: A perspective of policies and measures with greenhouse gas reduction potential
Author(s):		Chen W; Tang H; He L; Zhang Y; Ma W;
Address:		"Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, China; Shanghai Key Laboratory of Atmospheric Particle Pollution Prevention (LAP3), Shanghai 200433, China. Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, China; Shanghai Key Laboratory of Atmospheric Particle Pollution Prevention (LAP3), Shanghai 200433, China; Institute of Eco-Chongming (IEC), No. 3663 Northern Zhongshan Road, Shanghai 200062, China. Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, China; Shanghai Key Laboratory of Atmospheric Particle Pollution Prevention (LAP3), Shanghai 200433, China; Institute of Eco-Chongming (IEC), No. 3663 Northern Zhongshan Road, Shanghai 200062, China; Shanghai Key Laboratory of Policy Simulation and Assessment for Ecology and Environment Governance, Shanghai 200433, China. Electronic address: wcma@fudan.edu.cn"
Journal Title:		Sci Total Environ
Year:		2022
Volume:		20220818
Issue:		Pt 1
Page Number:		158119 -
DOI:		10.1016/j.scitotenv.2022.158119
ISSN/ISBN:		1879-1026 (Electronic) 0048-9697 (Linking)
Abstract:		"Clean air policies have achieved remarkable air quality improvement in China for the last decade. However, as more importance was attached to climate issues and further improvement of air quality, policies with greenhouse gas (GHG) reduction potential were supposed to play a significant role. Here, we designed a conventional legislation pathway scenario (CLP) and an enhanced greenhouse gas reduction scenario (EGR), to estimate the co-effects of policies effective in GHG reduction on air pollutant control and air quality improvement in the Yangtze River Delta (YRD) region from 2014 to 2020, adopting a measure-specific evaluation method and an integrated WRF-CAMx model simulation. Results showed that: 1) With the implementation of enhanced measures with GHG reduction potential, emissions of SO(2), NO(x), PM(2.5), PM(10), VOC(s) and NH(3) decreased by 16.4 %, 21.6 %, 18.6 %, 16.5 %, 23.9 % and 15.4 % in EGR scenario respectively, compared with CLP scenario. And the annual mean simulated concentrations of PM(2.5), SO(2) and NO(2) of the YRD decreased by 11.2 %, 15.4 % and 20.6 %, respectively. 2) The average 8-h maxima (MDA8) concentration of O(3) presented a slightly increasing trend under the impacts of measures with GHG reduction potential, which might be on account of the unbalanced control of NO(x) and VOC(s), the two major precursors of O(3). 3) Based on the source apportionment analysis, major partition of total ozone in the four receptors in YRD was from regional transportation, rather than local formation. And the major sectors contributing to ozone were industry and transportation sector. This study quantitatively assessed the co-benefits of GHG-control-effective policies and specific measures on air quality improvement, which would help to provide implications for future policy-making to achieve air pollution and climate change co-control"
Keywords:		*Air Pollutants/analysis *Air Pollution/analysis/prevention & control China Environmental Monitoring *Greenhouse Gases/analysis Nitrogen Dioxide/analysis *Ozone/analysis Particulate Matter/analysis Policy *Volatile Organic Compounds/analysis Air quality C;
Notes:		"MedlineChen, Wanqi Tang, Haoyue He, Li Zhang, Yan Ma, Weichun eng Netherlands 2022/08/21 Sci Total Environ. 2022 Dec 10; 851(Pt 1):158119. doi: 10.1016/j.scitotenv.2022.158119. Epub 2022 Aug 18"