Enrichment and transport mechanism of organochlorine pesticides in the Western Pacific Ocean: Particle size distribution and eddy accumulation
文献类型：期刊论文
| 作者 | Guo, Chao3,4,5; Li, Yanfang5; Tang, Jianhui5; Liu, Xueqi2; Zhen, Xiaomei1; Liu, Tongxu3 |
| 刊名 | ENVIRONMENTAL POLLUTION
 |
| 出版日期 | 2026-05-15 |
| 卷号 | 397页码:11 |
| 关键词 | Organochlorine pesticides Western pacific ocean Eddy enrichment Transport fate of OCPs Oceanic eddies |
| ISSN号 | 0269-7491 |
| DOI | 10.1016/j.envpol.2026.127996 |
| 通讯作者 | Tang, Jianhui(jhtang@yic.ac.cn) |
| 英文摘要 | Organochlorine pesticides (OCPs), as representative persistent organic pollutants, have drawn extensive attention for their distribution and transport in global oceans, with the Western Pacific serving as a crucial pollutant sink in global biogeochemical cycles. In this study, the OCP concentrations in the Western Pacific region were measured to be 62 - 3394 pg/L in surface water and 19 - 605 pg/m(3)in air. The OCP concentrations in the open ocean fluctuated substantially, being ten times higher at the edge of an eddy (site A16, 3394 pg/L) than in the surrounding region (site A15, 130 pg/L). In addition, samples collected using stage filtration equipment revealed that hydrophobic OCPs tend to adsorb onto small particles with larger specific surface areas. Particle transport by ocean currents exhibits size-selectivity, suggesting that the transport fates of OCPs with different solubilities also vary under oceanic influences. Furthermore, stage filtration samples (particle size: >5 mu m, 5 mu m-200 nm, 200 nm-5 nm, and water) revealed that over 20% of OCPs adsorb on particles smaller than 700 nm. Thus, separating the dissolved and particulate phases through a 700-nm filter may overestimate the OCP concentration in the dissolved phase, leading to inaccurate calculations of parameters such as the air-water exchange flux. These findings will enhance our understanding of the transport mechanisms of OCPs and similar organic pollutants in oceans. |
| WOS关键词 | POLYCHLORINATED-BIPHENYLS ; SPATIAL-DISTRIBUTION ; SURFACE-WATER ; OCPS ; CONTAMINATION ; ENVIRONMENT ; DEPOSITION ; POLLUTION ; SOILS ; PCBS |
| 资助项目 | National Natural Science Foundation of China[U22A20607] ; National Natural Science Foundation of China[42407536] ; National Natural Science Foundation of China[42261160644] ; National Natural Science Foundation of China[42321005] ; National Natural Science Foundation of China[42376169] ; Guangdong Major Project of Basic and Applied Basic Research[2023B0303000006] ; Guangzhou Basic and Applied Basic Research Foundation[2023A04J0931] ; Guangdong Foundation for Program of Science and Technology Research[2023B1212060044] ; GDAS'Project of Science and Technology Development[2023GDASZH-2023010103] ; GDAS'Project of Science and Technology Development[2022GDASZH-2022010201-04] ; GDAS'Project of Science and Technology Development[NORC2018-09] ; NSFC Ship time Sharing Project[41749909] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:001728966200001 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/205081]  |
| 专题 | 海洋研究所_海洋环流与波动重点实验室 |
| 通讯作者 | Tang, Jianhui |
| 作者单位 | 1.Jiangsu Environm Engn Technol Co Ltd, Jiangsu 201036, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Observat & Forecasting, Key Lab Ocean Circulat & Waves, Qingdao 266400, Peoples R China 3.Guangdong Acad Sci, Inst Ecoenvironm & Soil Sci, Natl Reg Joint Engn Res Ctr Soil Pollut Control &, Guangdong Key Lab Integrated Agroenvironm Pollut C, Guangzhou 510650, Peoples R China 4.Binzhou Med Univ, Yantai, Shandong, Peoples R China 5.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Shandong Key Lab Coastal Zone Environm Proc & Ecol, Yantai 264003, Peoples R China |
| 推荐引用方式 GB/T 7714 | Guo, Chao,Li, Yanfang,Tang, Jianhui,et al. Enrichment and transport mechanism of organochlorine pesticides in the Western Pacific Ocean: Particle size distribution and eddy accumulation[J]. ENVIRONMENTAL POLLUTION,2026,397:11. |
| APA | Guo, Chao,Li, Yanfang,Tang, Jianhui,Liu, Xueqi,Zhen, Xiaomei,&Liu, Tongxu.(2026).Enrichment and transport mechanism of organochlorine pesticides in the Western Pacific Ocean: Particle size distribution and eddy accumulation.ENVIRONMENTAL POLLUTION,397,11. |
| MLA | Guo, Chao,et al."Enrichment and transport mechanism of organochlorine pesticides in the Western Pacific Ocean: Particle size distribution and eddy accumulation".ENVIRONMENTAL POLLUTION 397(2026):11. |
入库方式： OAI收割
来源：海洋研究所
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