气候变化领域集成服务门户(CCPortal): Severe air pollution and characteristics of light-absorbing particles in a typical rural area of the Indo-Gangetic Plain

CCPortal

DOI	10.1007/s11356-020-07618-6
	Severe air pollution and characteristics of light-absorbing particles in a typical rural area of the Indo-Gangetic Plain
	Chen P.; Kang S.; Tripathee L.; Panday A.K.; Rupakheti M.; Rupakheti D.; Zhang Q.; Guo J.; Li C.; Pu T.
发表日期	2020
ISSN	1698095
起始页码	10617
结束页码	10628
卷号	27 期号:10
英文摘要	Total suspended particles (TSP) were collected in Lumbini from April 2013 to March 2016 to better understand the characteristics of carbonaceous aerosol (CA) concentrations, compositions and sources and their light absorption properties in rural region of severe polluted Indo-Gangetic Plain (IGP). Extremely high TSP (203.9 ± 109.6 μg m−3), organic carbon (OC 32.1 ± 21.7 μg m−3), elemental carbon (EC 6.44 ± 3.17 μg m−3) concentrations were observed in Lumbini particularly during winter and post-monsoon seasons, reflecting the combined influences of emission sources and weather conditions. SO4 2− (7.34 ± 4.39 μg m−3) and Ca2+ (5.46 ± 5.20 μg m−3) were the most dominant anion and cation in TSP. These components were comparable to those observed in urban areas in South and East Asia but significantly higher than those in remote regions over the Himalayas and Tibetan Plateau, suggesting severe air pollution in the study region. Various combustion activities including industry, vehicle emission, and biomass burning are the main reasons for high pollutant concentrations. The variation of OC/EC ratio further suggested that biomass such as agro-residue burning contributed a lot for CA, particularly during the non-monsoon season. The average mass absorption cross-section of EC (MACEC) and water-soluble organic carbon (MACWSOC) were 7.58 ± 3.39 and 1.52 ± 0.41 m2 g−1, respectively, indicating that CA in Lumbini was mainly affected by local emissions. Increased biomass burning decreased MACEC; whereas, it could result in high MACWSOC during the non-monsoon season. Furthermore, dust is one important factor causing higher MACWSOC during the pre-monsoon season. © 2020, Springer-Verlag GmbH Germany, part of Springer Nature.
英文关键词	Air pollution; Elemental carbon; Indo-Gangetic Plain; Light absorption; Lumbini; Organic carbon
语种	英语
scopus关键词	Environmental Science and Pollution Research
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/158453
作者单位	State Key Laboratory of Cryospheric Science, Chinese Academy of Sciences (CAS), Northwest Institute of Eco-Environment and Resources, CAS, DongGangXi Road, Chengguan District, Lanzhou, 730000, China; CAS Center for Excellence in Tibetan Plateau Earth Sciences, Beijing, 100101, China; University of CAS, Beijing, 100049, China; International Centre for Integrated Mountain Development, Kathmandu, 44700, Nepal; Institute for Advanced Sustainability Studies, Potsdam, 14467, Germany; Key Laboratory of Tibetan Environment Changes and Land Surface Processes, Institute of Tibetan Plateau Research, CAS, Beijing, 100101, China
推荐引用方式 GB/T 7714	Chen P.,Kang S.,Tripathee L.,et al. Severe air pollution and characteristics of light-absorbing particles in a typical rural area of the Indo-Gangetic Plain[J]. 中国科学院西北生态环境资源研究院,2020,27(10).
APA	Chen P..,Kang S..,Tripathee L..,Panday A.K..,Rupakheti M..,...&Pu T..(2020).Severe air pollution and characteristics of light-absorbing particles in a typical rural area of the Indo-Gangetic Plain.,27(10).
MLA	Chen P.,et al."Severe air pollution and characteristics of light-absorbing particles in a typical rural area of the Indo-Gangetic Plain".27.10(2020).