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, Pengfei; Kang, Shichang; Tripathee, Lekhendra; Panday, Arnico K.; Rupakheti, Maheswar; Rupakheti, Dipesh; Zhang, Qianggong; Guo, Junming; Li, Chaoliu; Pu, Tao
通讯作者	Kang, SC (通讯作者)
发表日期	2020
ISSN	0944-1344
EISSN	1614-7499
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 mu g m(-3)), organic carbon (OC 32.1 +/- 21.7 mu g m(-3)), elemental carbon (EC 6.44 +/- 3.17 mu g m(-3)) concentrations were observed in Lumbini particularly during winter and post-monsoon seasons, reflecting the combined influences of emission sources and weather conditions. SO42- (7.34 +/- 4.39 mu g m(-3)) and Ca2+ (5.46 +/- 5.20 mu g 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 (MAC(EC)) and water-soluble organic carbon (MAC(WSOC)) were 7.58 +/- 3.39 and 1.52 +/- 0.41 m(2) g(-1), respectively, indicating that CA in Lumbini was mainly affected by local emissions. Increased biomass burning decreased MAC(EC); whereas, it could result in high MAC(WSOC) during the non-monsoon season. Furthermore, dust is one important factor causing higher MAC(WSOC) during the pre-monsoon season.
关键词	SOLUBLE ORGANIC-CARBON POLYCYCLIC AROMATIC-HYDROCARBONS BIOMASS BURNING EMISSIONS BLACK-CARBON BROWN CARBON CHEMICAL-COMPOSITION OPTICAL-PROPERTIES ELEMENTAL CARBON SOURCE APPORTIONMENT TIBETAN PLATEAU
英文关键词	Air pollution; Organic carbon; Elemental carbon; Light absorption; Lumbini; Indo-Gangetic Plain
语种	英语
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Environmental Sciences
WOS记录号	WOS:000507371600002
来源期刊	ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/259830
推荐引用方式 GB/T 7714	Chen, Pengfei,Kang, Shichang,Tripathee, Lekhendra,et al. Severe air pollution and characteristics of light-absorbing particles in a typical rural area of the Indo-Gangetic Plain[J]. 中国科学院青藏高原研究所,2020,27(10).
APA	Chen, Pengfei.,Kang, Shichang.,Tripathee, Lekhendra.,Panday, Arnico K..,Rupakheti, Maheswar.,...&Pu, Tao.(2020).Severe air pollution and characteristics of light-absorbing particles in a typical rural area of the Indo-Gangetic Plain.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,27(10).
MLA	Chen, Pengfei,et al."Severe air pollution and characteristics of light-absorbing particles in a typical rural area of the Indo-Gangetic Plain".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH 27.10(2020).