气候变化领域集成服务门户(CCPortal): Quantifying the impact of biomass burning and dust storm activities on aerosol characteristics over the Indo-Gangetic Basin

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DOI	10.1016/j.atmosenv.2021.118893
	Quantifying the impact of biomass burning and dust storm activities on aerosol characteristics over the Indo-Gangetic Basin
	Singh A.; Srivastava A.K.; Pathak V.; Shukla A.K.
发表日期	2021
ISSN	1352-2310
英文摘要	The high aerosol loading over the entire Indo-Gangetic Basin (IGB) region in the northern India attracted attentions of scientific community especially when about 900 million people living in the areas suffered with poor air quality due to intense fog, haze and smog during the post-monsoon/winter period and dust storm activity during the summer period. The present study focused on first long-term comparative study to quantify the aerosol characteristics during the biomass burning (October-November) and dusty (April-June) periods using satellite measurements from 2004-2018 at three different locations: Jaipur, Kanpur and Ballia over IGB. The highest aerosol optical depth (AOD) values for the biomass (0.74 ± 0.35) and dusty period (0.63 ± 0.34) were observed at Kanpur during the entire study period. The finer particles were found to be dominant during the biomass period at all the locations. During the biomass burning period, an increased AOD trend was observed at Ballia (0.017 year−1), followed by Kanpur (0.0144 year−1) and Jaipur (0.0061 year−1) whereas during the dusty period, an increasing trend was observed at Ballia (0.0074 year−1) and decreasing trend over Jaipur (−0.0132 year−1) and Kanpur (−0.0083 year−1). During the biomass burning period, anthropogenic aerosol (AA) types were found to be dominant over Kanpur (52%) and Ballia (56%) while clean condition (CC) aerosol type was dominant over Jaipur (69%). On the other hand, during dusty period, the highest contribution of desert dust (DD) was observed at Kanpur (37%) and Ballia (30%); however, CC type of aerosol dominated over Jaipur (42%). The potential source sectors and the transport pathways of pollutants have been widely characterized at all the stations using the potential source contribution function (PSCF) and concentration weighted trajectory (CWT) analyses with the backward air mass trajectories. Results revealed that the high levels of aerosol over the stations are mainly from the local areas and also from the upper and middle IGB region. © 2021 Elsevier Ltd
关键词	Aerosol optical properties Biomass burning Dust IGB PSCF and CWT
语种	英语
scopus关键词	Aerosols; Air quality; Biomass; Haze polution; Optical properties; Storms; Aerosol characteristics; Aerosol optical depths; Aerosol optical property; Aerosol types; Biomass-burning; Dust storm; Indo-Gangetic basin; Potential source contribution function; Potential source contribution function and concentration weighted trajectory; Storm activities; Dust
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/248770
作者单位	Indian Institute of Tropical Meteorology, Ministry of Earth SciencesNew Delhi, India; Institute of Engineering and Technology, Lucknow, India
推荐引用方式 GB/T 7714	Singh A.,Srivastava A.K.,Pathak V.,et al. Quantifying the impact of biomass burning and dust storm activities on aerosol characteristics over the Indo-Gangetic Basin[J],2021.
APA	Singh A.,Srivastava A.K.,Pathak V.,&Shukla A.K..(2021).Quantifying the impact of biomass burning and dust storm activities on aerosol characteristics over the Indo-Gangetic Basin.ATMOSPHERIC ENVIRONMENT.
MLA	Singh A.,et al."Quantifying the impact of biomass burning and dust storm activities on aerosol characteristics over the Indo-Gangetic Basin".ATMOSPHERIC ENVIRONMENT (2021).