Spatiotemporal distribution and influencing factors of secondary organic aerosols in the summer atmosphere from the Bering Sea to the western North Pacific
文献类型：期刊论文
| 作者 | Hu, Chengge1,5; Yue, Fange1; Zhan, Haicong1; Leung, Kenneth M. Y.2,3; Liu, Hongwei1; Gu, Weihua1; Zhang, Runqi4; Chen, Afeng1; Wang, Xinming4; Xie, Zhouqing1 |
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2023-02-10 |
| 卷号 | 859页码:10 |
| 关键词 | Secondary organic aerosols tracers Marine atmosphere Secondary organic carbon Terrestrial transmission |
| ISSN号 | 0048-9697 |
| DOI | 10.1016/j.scitotenv.2022.160138 |
| 英文摘要 | To better understand the formation process of biogenic and anthropogenic secondary organic aerosols (BSOA and ASOA) in the marine atmosphere under the background of global warming, aerosol samples were collected over three summers (i.e., 2014, 2016 and 2018) from the Bering Sea (BS) to the western North Pacific (WNP). The results showed that temporally, atmospheric concentrations of isoprene-derived SOA (SOAI) tracers were the lowest in 2014 regardless of the marine region, while atmospheric concentrations of monoterpenes-derived SOA (SOAM) tracers in this year were the highest and the aerosols were more aged than those in the other two years. In comparison, the con-centrations of beta-caryophyllene-derived and toluene-derived SOA (SOAC and SOAA) tracers were relatively low overall. Spatially, the concentrations of SOA tracers were significantly higher over the WNP than over the BS, with SOA tracers over the BS mainly coming from marine sources, while the WNP was strongly influenced by terrestrial inputs. In par-ticular, for land-influenced samples from the WNP, NOx-channel products of SOAI were more dependent on O3 and SO2 relative to HO2-channel product, and the high atmospheric oxidation capacity and SO2 could promote the formation of later-generation SOAM products. The extent of terrestrial influence was further quantified using a principal component analysis (PCA)-generalized additive model (GAM), which showed that terrestrial emissions explained more than half of the BSOA tracers' concentrations and contributed almost all of the ASOA tracer. In addition, the assessment of sec-ondary organic carbon (SOC) highlighted the key role of anthropogenic activities in organic carbon levels in offshore areas. Our study revealed significant contributions of terrestrial natural and anthropogenic sources to different SOA over the WNP, and these relevant findings help improve knowledge about SOA in the marine atmosphere. |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000916059500003 |
| 源URL | [http://ir.gig.ac.cn/handle/344008/72693]  |
| 专题 | 有机地球化学国家重点实验室 |
| 通讯作者 | Wang, Xinming; Xie, Zhouqing |
| 作者单位 | 1.Univ Sci & Technol China, Dept Environm Sci & Engn, Anhui Key Lab Polar Environm & Global Change, Hefei, Peoples R China 2.City Univ Hong Kong, State Key Lab Marine Pollut, Tat Chee Ave, Hong Kong, Peoples R China 3.City Univ Hong Kong, Dept Chem, Tat Chee Ave, Hong Kong, Peoples R China 4.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou, Peoples R China 5.Univ Sci & Technol China, Suzhou Inst Adv Study, Suzhou, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hu, Chengge,Yue, Fange,Zhan, Haicong,et al. Spatiotemporal distribution and influencing factors of secondary organic aerosols in the summer atmosphere from the Bering Sea to the western North Pacific[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2023,859:10. |
| APA | Hu, Chengge.,Yue, Fange.,Zhan, Haicong.,Leung, Kenneth M. Y..,Liu, Hongwei.,...&Xie, Zhouqing.(2023).Spatiotemporal distribution and influencing factors of secondary organic aerosols in the summer atmosphere from the Bering Sea to the western North Pacific.SCIENCE OF THE TOTAL ENVIRONMENT,859,10. |
| MLA | Hu, Chengge,et al."Spatiotemporal distribution and influencing factors of secondary organic aerosols in the summer atmosphere from the Bering Sea to the western North Pacific".SCIENCE OF THE TOTAL ENVIRONMENT 859(2023):10. |
入库方式： OAI收割
来源：广州地球化学研究所
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