Knowledge Management System Of Guangzhou Institute of Geochemistry,CAS
Zhang, Runqi1,3; Song, Wei1; Zhang, Yanli1,2![]() ![]() | |
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 |
DOI | 10.1016/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 | |
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 |
推荐引用方式 GB/T 7714 | 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. |
条目包含的文件 | ||||||
条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论