Chemical Signatures of Seasonally Unique Anthropogenic Influences on Organic Aerosol Composition in the Central Amazon
文献类型：期刊论文
| 作者 | Franklin, Emily B.13,14; Yee, Lindsay D.12; Wernis, Rebecca14; Isaacman-VanWertz, Gabriel11,12; Kreisberg, Nathan10; Weber, Robert12; Zhang, Haofei9,12; Palm, Brett B.7,8; Hu, Weiwei6,8 ; Campuzano-Jost, Pedro8
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| 刊名 | ENVIRONMENTAL SCIENCE & TECHNOLOGY
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| 出版日期 | 2023 |
| 卷号 | 57期号:15页码:6263-6272 |
| 关键词 | MANAUS URBAN PLUME BIOMASS BURNING AEROSOLS OXIDATION-PRODUCTS BIOGENIC SOURCES RAIN-FOREST CHEMISTRY CLOUD SOA WET MONOTERPENES |
| ISSN号 | 0013-936X |
| DOI | 10.1021/acs.est.2c07260 |
| 英文摘要 | Urbanization and fires perturb the quantities and composition of fine organic aerosol in the central Amazon, with ramifications for radiative forcing and public health. These disturbances include not only direct emissions of particulates and secondary organic aerosol (SOA) precursors but also changes in the pathways through which biogenic precursors form SOA. The composition of ambient organic aerosol is complex and incompletely characterized, encompassing millions of potential structures relatively few of which have been synthesized and characterized. Through analysis of submicron aerosol samples from the Green Ocean Amazon (GoAmazon2014/5) field campaign by two-dimensional gas chromatography coupled with machine learning, ?1300 unique compounds were traced and characterized over two seasons. Fires and urban emissions produced chemically and interseasonally distinct impacts on product signatures, with only ?50% of compounds observed in both seasons. Seasonally unique populations point to the importance of aqueous processing in Amazonian aerosol aging, but further mechanistic insights are impeded by limited product identity knowledge. Less than 10% of compounds were identifiable at an isomer-specific level. Overall, the findings (i) provide compositional characterization of anthropogenic influence on submicron organic aerosol in the Amazon, (ii) identify key season-to-season differences in chemical signatures, and (iii) highlight high-priority knowledge gaps in current speciated knowledge. ? 2023 American Chemical Society |
| WOS研究方向 | Engineering, Environmental ; Environmental Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000967375500001 |
| 源URL | [http://ir.gig.ac.cn/handle/344008/80212]  |
| 专题 | 有机地球化学国家重点实验室 |
| 作者单位 | 1.Department of Earth and Planetary Sciences, Harvard University, Cambridge; MA; 02138, United States 2.School of Engineering and Applied Sciences, Harvard University, Cambridge; MA; 02138, United States 3.School of Technology, Amazonas State University, Amazonas, Manaus; 69065-020, Brazil 4.Institute of Physics, University of Sao Paulo, S?o Paulo, Sao Paulo; 05508-090, Brazil 5.Instituto Nacional de Pesquisas Espaciais (INPE), S?o Paulo, Cachoeira Paulista; 12630-000, Brazil 6.State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou; 510640, China 7.Atmospheric Chemistry Observations and Modeling Laboratory, National Center for Atmospheric Research, Boulder; CO; 80301, United States 8.Department of Chemistry and Cooperative Institute for Research in Environmental Sciences (CIRES), University of Colorado, Boulder; CO; 80309, United States 9.Department of Chemistry, University of California, Riverside; CA; 92521, United States 10.Aerosol Dynamics, Inc., Berkeley; CA; 94710, United States |
| 推荐引用方式 GB/T 7714 | Franklin, Emily B.,Yee, Lindsay D.,Wernis, Rebecca,et al. Chemical Signatures of Seasonally Unique Anthropogenic Influences on Organic Aerosol Composition in the Central Amazon[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2023,57(15):6263-6272. |
| APA | Franklin, Emily B..,Yee, Lindsay D..,Wernis, Rebecca.,Isaacman-VanWertz, Gabriel.,Kreisberg, Nathan.,...&Goldstein, Allen H..(2023).Chemical Signatures of Seasonally Unique Anthropogenic Influences on Organic Aerosol Composition in the Central Amazon.ENVIRONMENTAL SCIENCE & TECHNOLOGY,57(15),6263-6272. |
| MLA | Franklin, Emily B.,et al."Chemical Signatures of Seasonally Unique Anthropogenic Influences on Organic Aerosol Composition in the Central Amazon".ENVIRONMENTAL SCIENCE & TECHNOLOGY 57.15(2023):6263-6272. |
入库方式： OAI收割
来源：广州地球化学研究所
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