气候变化领域集成服务门户(CCPortal): Chemical composition of waste burning organic aerosols at landfill and urban sites in Delhi

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DOI	10.1016/j.apr.2019.12.004
	Chemical composition of waste burning organic aerosols at landfill and urban sites in Delhi
	Agarwal R.; Shukla K.; Kumar S.; Aggarwal S.G.; Kawamura K.
发表日期	2020
ISSN	13091042
卷号	11 期号:3
英文摘要	Organic composition of total suspended particles collected from an open waste burning landfill site and an urban site of Delhi, one of the most populated cities of Asia was studied. Among the organic compounds detected, fatty acids were found to be the most abundant class of compounds at both the sites, urban (16823 ng m−3) as well as landfill site (1218120 ng m−3). As a single compound detected (on average), levoglucosan (2925 ng m−3) was found to be most abundant at urban site, whereas C18:0 fatty acid (76090 ng m−3) dominated at the landfill site. Levoglucosan contributed up to 87% of total identified sugars at urban and 86% at landfill site, suggesting biomass burning to be one of the major contributors of sugar compounds, and a possible influence of landfill waste burning on urban aerosols. CPI value for n-alkanes was close to unity at both sites (0.81 at landfill and 1.27 at urban site) indicating the anthropogenic nature of the aerosols. A predominance of tere-phthalic acid (42555 ng m−3) was found in aerosol samples collected at landfill site because of plastic enriched waste burning activity. Except 4- hydroxybenzoic acid, all other lignin and resin products are first time reported to be released by open waste burning activities in the present study. We also found a strong positive correlation between di-isobutyl phthalate and di-n-butyl phthalate at both urban (r2 = 0.94) and landfill site (r2 = 0.86), suggesting them to be the commonly used plasticizers, and plastics to be a main constituent of municipal waste. Since, the waste burning at landfill sites is a common practice either to reduce waste heaps or be it a self-ignited burning leading to significant emissions, we report the chemical composition of organic aerosols originating from such emissions. The information presented in this paper may further be useful in estimating the contribution of municipal waste burning aerosols on urban burden of particulate matter. © 2020
英文关键词	Landfill; Municipal waste burning; Organic aerosols; Urban aerosols
语种	英语
来源期刊	Atmospheric Pollution Research
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/120563
作者单位	Academy of Scientific & Innovative Research (AcSIR), CSIR-National Physical Laboratory Campus, Dr. K.S. Krishnan Marg, New Delhi, 110012, India; Gas Metrology, Environmental Sciences & Biomedical Metrology Division, CSIR-National Physical Laboratory, Dr. K.S. Krishnan Marg, New Delhi, 110012, India; now at Indian Institute of Technology (IIT), New Delhi, 110016, India; Chubu Institute for Advanced Studies, Chubu University, 1200 Matsumato-cho, Kasugai, 487-850, Japan
推荐引用方式 GB/T 7714	Agarwal R.,Shukla K.,Kumar S.,et al. Chemical composition of waste burning organic aerosols at landfill and urban sites in Delhi[J],2020,11(3).
APA	Agarwal R.,Shukla K.,Kumar S.,Aggarwal S.G.,&Kawamura K..(2020).Chemical composition of waste burning organic aerosols at landfill and urban sites in Delhi.Atmospheric Pollution Research,11(3).
MLA	Agarwal R.,et al."Chemical composition of waste burning organic aerosols at landfill and urban sites in Delhi".Atmospheric Pollution Research 11.3(2020).