气候变化领域集成服务门户(CCPortal): Air quality and health benefits from ultra-low emission control policy indicated by continuous emission monitoring: A case study in the Yangtze River Delta region, China

CCPortal

DOI	10.5194/acp-21-6411-2021
	Air quality and health benefits from ultra-low emission control policy indicated by continuous emission monitoring: A case study in the Yangtze River Delta region, China
	Zhang Y.; Zhao Y.; Gao M.; Bo X.; Nielsen C.P.
发表日期	2021
ISSN	1680-7316
起始页码	6411
结束页码	6430
卷号	21 期号:8
英文摘要	To evaluate the improved emission estimates from online monitoring, we applied the Models-3/CMAQ (Community Multiscale Air Quality) system to simulate the air quality of the Yangtze River Delta (YRD) region using two emission inventories with and without incorporated data from continuous emission monitoring systems (CEMSs) at coal-fired power plants (cases 1 and 2, respectively). The normalized mean biases (NMBs) between the observed and simulated hourly concentrations of SOspan classCombining double low line"inline-formula"2/span, NOspan classCombining double low line"inline-formula"2/span, Ospan classCombining double low line"inline-formula"3/span, and PMspan classCombining double low line"inline-formula"2.5/span in case 2 were span classCombining double low line"inline-formula"-3.1/span %, 56.3 %, span classCombining double low line"inline-formula"-19.5/span %, and span classCombining double low line"inline-formula"-1.4/span %, all smaller in absolute value than those in case 1 at 8.2 %, 68.9 %, span classCombining double low line"inline-formula"-24.6/span %, and 7.6 %, respectively. The results indicate that incorporation of CEMS data in the emission inventory reduced the biases between simulation and observation and could better reflect the actual sources of regional air pollution. Based on the CEMS data, the air quality changes and corresponding health impacts were quantified for different implementation levels of China's recent "ultra-low" emission policy. If the coal-fired power sector met the requirement alone (case 3), the differences in the simulated monthly SOspan classCombining double low line"inline-formula"2/span, NOspan classCombining double low line"inline-formula"2/span, Ospan classCombining double low line"inline-formula"3/span, and PMspan classCombining double low line"inline-formula"2.5/span concentrations compared to those of case 2, our base case for policy comparisons, would be less than 7 % for all pollutants. The result implies a minor benefit of ultra-low emission control if implemented in the power sector alone, which is attributed to its limited contribution to the total emissions in the YRD after years of pollution control (11 %, 7 %, and 2 % of SOspan classCombining double low line"inline-formula"2/span, NOspan classCombining double low line"inline-formula"iX/i/span, and primary particle matter (PM) in case 2, respectively). If the ultra-low emission policy was enacted at both power plants and selected industrial sources including boilers, cement, and iron and steel factories (case 4), the simulated SOspan classCombining double low line"inline-formula"2/span, NOspan classCombining double low line"inline-formula"2/span, and PMspan classCombining double low line"inline-formula"2.5/span concentrations compared to the base case would be 33 %-64 %, 16 %-23 %, and 6 %-22 % lower, respectively, depending on the month (January, April, July, and October 2015). Combining CMAQ and the Integrated Exposure Response (IER) model, we further estimated that 305 deaths and 8744 years of life loss (YLL) attributable to PMspan classCombining double low line"inline-formula"2.5/span exposure could be avoided with the implementation of the ultra-low emission policy in the power sector in the YRD region. The analogous values would be much higher, at 10 651 deaths and 316 562 YLL avoided, if both power and industrial sectors met the ultra-low emission limits. In order to improve regional airspan idCombining double low line"page6412"/ quality and to reduce human health risk effectively, coordinated control of multiple sources should be implemented, and the ultra-low emission policy should be substantially expanded to major emission sources in industries other than the power industry./p. © 2021 Royal Society of Chemistry. All rights reserved.
语种	英语
scopus关键词	air quality; atmospheric modeling; coal-fired power plant; emission control; emission inventory; health impact; pollution monitoring; pollution policy; China; Yangtze Delta
来源期刊	ATMOSPHERIC CHEMISTRY AND PHYSICS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/246944
作者单位	State Key Laboratory of Pollution Control and Resource Reuse and School of the Environment, Nanjing University, 163 Xianlin Rd., Nanjing, Jiangsu, 210023, China; Jiangsu Environmental Engineering and Technology Co. Ltd., Jiangsu Environmental Protection Group Co., Ltd., 8 East Jialingjiang St., Nanjing, Jiangsu, 210019, China; Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Nanjing University of Information Science and Technology, Jiangsu, 210044, China; Department of Geography, State Key Laboratory of Environmental and Biological Analysis, Hong Kong Baptist University, Hong Kong SAR, China; Appraisal Center for Environment and Engineering, Ministry of Environmental Protection, Beijing, 100012, China; Harvard-China Project on Energy, John A. Paulson School of Engineering and Applied Sciences, Harvard University, 29 Oxford St., Cambridge, MA 02138, United States
推荐引用方式 GB/T 7714	Zhang Y.,Zhao Y.,Gao M.,et al. Air quality and health benefits from ultra-low emission control policy indicated by continuous emission monitoring: A case study in the Yangtze River Delta region, China[J],2021,21(8).
APA	Zhang Y.,Zhao Y.,Gao M.,Bo X.,&Nielsen C.P..(2021).Air quality and health benefits from ultra-low emission control policy indicated by continuous emission monitoring: A case study in the Yangtze River Delta region, China.ATMOSPHERIC CHEMISTRY AND PHYSICS,21(8).
MLA	Zhang Y.,et al."Air quality and health benefits from ultra-low emission control policy indicated by continuous emission monitoring: A case study in the Yangtze River Delta region, China".ATMOSPHERIC CHEMISTRY AND PHYSICS 21.8(2021).