Legacy perfluoroalkyl acids and emerging perfluoroalkyl ether carboxylic acids in the atmosphere of Laizhou Bay estuaries: Occurrence, gas-particle partitioning, and potential sources
文献类型：期刊论文
| 作者 | Sun, Hao3; Miao, Xinchen4; Dong, Fengfeng4; Sun, Rong1; Jia, Xuan3; Liu, Xing3; Wu, Zilan3; Yao, Ziwei3; Dai, Jiayin4; Tang, Jianhui1 |
| 刊名 | MARINE ENVIRONMENTAL RESEARCH
 |
| 出版日期 | 2026-03-01 |
| 卷号 | 215页码:11 |
| 关键词 | PFECAs Seasonal variations Gas-particle partitioning Potential sources |
| ISSN号 | 0141-1136 |
| DOI | 10.1016/j.marenvres.2026.107850 |
| 通讯作者 | Sun, Hao(hsun@nmemc.org.cn) ; Pan, Yitao(panyitao@sjtu.edu.cn) |
| 英文摘要 | This study investigated the occurrence, gas-particle partitioning, and potential sources of legacy perfluoroalkyl acids (PFAAs) and emerging perfluoroalkyl ether carboxylic acids (PFECAs) in the atmospheric estuaries of Laizhou Bay in North China during 2024. The total concentrations of 28 individual per- and polyfluoroalkyl substances (PFAS) ranged from 31.4 to 2340 pg/m3 in the gaseous phase and from 31.0 to 7262 pg/m3 in the particulate phase. The Yellow River estuary exhibited slightly higher atmospheric PFAS pollution levels than the Xiaoqing River estuary. PFECAs dominated both the gaseous (69.2 %) and particulate phases (88.0 %), with concentrations significantly exceeding those of legacy PFAAs. Seasonal variations indicated that particulate PFAS concentrations peaked in winter. However, higher PFAS levels observed during summer at the Yellow River estuary compared with other seasons were attributed to its unique hydrological and meteorological conditions. Gas-particle partitioning analysis revealed that the partition coefficient (Log Kp) of PFECAs exhibited a nonlinear "U-shaped" trend with carbon chain length, distinct from the pattern observed for legacy PFAAs. The partitioning behavior of PFECAs differed from that of legacy PFAAs owing to the presence of ether bonds, which altered their fundamental physicochemical properties. The positive matrix factorization model identified five major sources of PFAS in the two estuaries. The similarity in source profiles between the estuaries suggests that PFAS emissions were primarily driven by large-scale, basin-level industrial activities, rather than local geographical variations. The findings underscore the need to include emerging PFECAs in monitoring programs and to develop basin-scale management strategies for PFAS control. |
| WOS关键词 | SUBSTANCES ; RIVERINE ; PFAAS ; WATER |
| WOS研究方向 | Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Toxicology |
| 语种 | 英语 |
| WOS记录号 | WOS:001676143900002 |
| 资助机构 | National Key Research and Development Program of China ; National Natural Science Foundation of China ; National Marine Environmental Monitoring Center |
| 源URL | [http://ir.yic.ac.cn/handle/133337/42062]  |
| 专题 | 烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室 |
| 通讯作者 | Sun, Hao; Pan, Yitao |
| 作者单位 | 1.Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China 2.Fudan Univ, Inst Atmospher Sci, Dept Environm Sci & Engn, Shanghai Key Lab Atmospher Particle Pollut & Preve, Shanghai 200438, Peoples R China 3.Natl Marine Environm Monitoring Ctr, Dalian 116023, Peoples R China 4.Shanghai Jiao Tong Univ, Sch Environm Sci & Engn, Key Lab Environm Hlth Impact Assessment Emerging C, Minist Ecol & Environm, Shanghai 200240, Peoples R China |
| 推荐引用方式 GB/T 7714 | Sun, Hao,Miao, Xinchen,Dong, Fengfeng,et al. Legacy perfluoroalkyl acids and emerging perfluoroalkyl ether carboxylic acids in the atmosphere of Laizhou Bay estuaries: Occurrence, gas-particle partitioning, and potential sources[J]. MARINE ENVIRONMENTAL RESEARCH,2026,215:11. |
| APA | Sun, Hao.,Miao, Xinchen.,Dong, Fengfeng.,Sun, Rong.,Jia, Xuan.,...&Pan, Yitao.(2026).Legacy perfluoroalkyl acids and emerging perfluoroalkyl ether carboxylic acids in the atmosphere of Laizhou Bay estuaries: Occurrence, gas-particle partitioning, and potential sources.MARINE ENVIRONMENTAL RESEARCH,215,11. |
| MLA | Sun, Hao,et al."Legacy perfluoroalkyl acids and emerging perfluoroalkyl ether carboxylic acids in the atmosphere of Laizhou Bay estuaries: Occurrence, gas-particle partitioning, and potential sources".MARINE ENVIRONMENTAL RESEARCH 215(2026):11. |
入库方式： OAI收割
来源：烟台海岸带研究所
浏览0
下载0
收藏0
其他版本
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。