气候变化领域集成服务门户(CCPortal): Interstate transport of carbon monoxide and black carbon over India

CCPortal

DOI	10.1016/j.atmosenv.2021.118268
	Interstate transport of carbon monoxide and black carbon over India
	Bhardwaj P.; Kumar R.; Seddon J.
发表日期	2021
ISSN	1352-2310
卷号	251
英文摘要	The contribution of interstate pollution transport to surface carbon monoxide (CO) and black carbon (BC) levels in different Indian states and regions is studied by implementing a computationally efficient tagged tracer technique in the Weather Research and Forecasting model coupled with chemistry. Anthropogenic and fire emissions of CO and BC are tracked from each Indian state and the simulated CO and BC concentrations are used to estimate state-wise pairs of source and receptor states in 2014, the most recent year for which anthropogenic emissions are available. We observe strong relationship between direct emissions and concentrations of CO and BC with local emissions contributing 56–68% to the annual averaged CO and BC levels in Uttar Pradesh, Delhi, and West Bengal located in the Indo-Gangetic Plain. Interstate transport contributes 53 ± 23% and 52 ± 25% to annual averaged CO and BC, respectively, in different Indian states. Interstate transport contribution exceeds 60% in one third of the Indian states. Uttar Pradesh, West Bengal, Maharashtra, and Bihar are among the top five contributors to CO and BC levels in most of the Indian states. Seasonal changes in monsoonal circulation also led to a reversal of source-receptor relationship at the state level between winter and summer monsoon seasons. Our findings imply a need to extend India's air quality management framework to address interstate exchange of pollution. © 2021
语种	英语
scopus关键词	Air quality; Carbon monoxide; Particulate emissions; Quality management; Anthropogenic emissions; Computationally efficient; Indo-Gangetic Plains; Pollution transport; Seasonal changes; Source-receptor relationships; Transport contributions; Weather research and forecasting models; Weather forecasting; black carbon; carbon monoxide; air quality; anthropogenic source; atmospheric pollution; black carbon; carbon monoxide; detection method; pollutant transport; seasonal variation; spatiotemporal analysis; aerosol; air pollution; air quality; Article; Bihar; controlled study; India; Maharashtra; pollution transport; priority journal; rainy season; seasonal variation; simulation; summer; Uttar Pradesh; West Bengal; winter; India
来源期刊	ATMOSPHERIC ENVIRONMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/248534
作者单位	National Center for Atmospheric Research (NCAR) Boulder80302, United States; World Resources Institute, Washington, DC 20002, United States; M.S. Chadha Center for Global India, Princeton Institute for International and Regional Studies (PIIRS), Princeton University, Princeton, NJ 08540, United States
推荐引用方式 GB/T 7714	Bhardwaj P.,Kumar R.,Seddon J.. Interstate transport of carbon monoxide and black carbon over India[J],2021,251.
APA	Bhardwaj P.,Kumar R.,&Seddon J..(2021).Interstate transport of carbon monoxide and black carbon over India.ATMOSPHERIC ENVIRONMENT,251.
MLA	Bhardwaj P.,et al."Interstate transport of carbon monoxide and black carbon over India".ATMOSPHERIC ENVIRONMENT 251(2021).