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Zhang, Runqi1,3; Song, Wei1; Zhang, Yanli1,2; Wang, Xinming1,2,3; Fu, Xuewei1,3; Li, Sheng1,3
Particulate nitrated aromatic compounds from corn straw burning: Compositions, optical properties and potential health risks
刊名ENVIRONMENTAL POLLUTION
ISSN号0269-7491
2023
卷号323页码:121332
DOI10.1016/j.envpol.2023.121332
语种英语
WOS研究方向Environmental Sciences
摘要Nitrated aromatic compounds (NACs) are important components of brown carbon (BrC), and their health and climate effects are of wide concern. Biomass burning is a major contributor to NACs in the atmosphere, yet NACs emitted from biomass burning are poorly constrained. In this study particulate NACs from open burning of corn straws were characterized in terms of their compositions, light absorption and toxic equivalents. 1, 6-dinitropyrene was the most abundant species among the measured nitropolycyclic aromatic hydrocarbons (NPAHs) with a share of 13.4% in total NPAHs, while 4-nitrocatechol was the most abundant nitrophenol (NP) species and accounted for 25.4% of measured NPs. 2-nitropyrene, widely used as a marker of secondary formation of NPAHs, was found to be the second most abundant NPAHs (13.3% of the total NPAHs) in the particulate matter (PM) primarily emitted from corn straw burning, and thus is inappropriate to be an indicator of the secondary formation. The measured primary NACs could only explain a negligible part (0.2%) of the light absorption by BrC. Although the concentrations of 9 toxic NACs were less than one-third of the 16 USEPA priority PAHs, their benzo(a)pyrene toxic equivalency quotients however were approximately 10 times that of the 16 PAHs. This study suggests that in comparison of PAHs from straw burning, NACs should be given greater attention due to their potentially higher toxic effects. ? 2023 Elsevier Ltd
关键词HUMIC-LIKE SUBSTANCES CARBON LIGHT-ABSORPTION BROWN CARBON NITROAROMATIC COMPOUNDS ULTRAFINE PARTICLES ORGANIC AEROSOL HYDROCARBONS URBAN COMBUSTION CHEMISTRY
WOS记录号WOS:000948833200001
收录类别SCI
引用统计
被引频次:8[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.gig.ac.cn/handle/344008/80304
专题有机地球化学国家重点实验室
作者单位1.State Key Laboratory of Organic Geochemistry and Guangdong Key Laboratory of Environmental Protection and Resources Utilization, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou; 510640, China
2.Center for Excellence in Regional Atmospheric Environment, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen; 361021, China
3.University of Chinese Academy of Sciences, Beijing; 100049, China
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Zhang, Runqi,Song, Wei,Zhang, Yanli,et al. Particulate nitrated aromatic compounds from corn straw burning: Compositions, optical properties and potential health risks[J]. ENVIRONMENTAL POLLUTION,2023,323:121332.
APA Zhang, Runqi,Song, Wei,Zhang, Yanli,Wang, Xinming,Fu, Xuewei,&Li, Sheng.(2023).Particulate nitrated aromatic compounds from corn straw burning: Compositions, optical properties and potential health risks.ENVIRONMENTAL POLLUTION,323,121332.
MLA Zhang, Runqi,et al."Particulate nitrated aromatic compounds from corn straw burning: Compositions, optical properties and potential health risks".ENVIRONMENTAL POLLUTION 323(2023):121332.
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