气候变化领域集成服务门户(CCPortal): Exchange Dynamics of Typical Emerging and Legacy Persistent Organic Pollutants at the Air-Water Interface Over a Strongly Human-Influenced Large River Estuary

CCPortal

DOI	10.1029/2019JD031853
	Exchange Dynamics of Typical Emerging and Legacy Persistent Organic Pollutants at the Air-Water Interface Over a Strongly Human-Influenced Large River Estuary
	Guo T.; Li Y.; Lin T.; Wu Z.; Jiang Y.; Guo Z.
发表日期	2020
ISSN	2169897X
卷号	125 期号:13
英文摘要	To explore the riverine or atmospheric influence on the source-sink fates of typical persistent organic pollutants (POPs): polybrominated diphenyl ethers (PBDEs) and polychlorinated biphenyls (PCBs) in the large river estuary, atmospheric and seawater samples were collected simultaneously over a whole year at a remote small island in the Yangtze River Estuary (YRE), the East China Sea. A comparable net input of BDE-209 from the atmosphere to the sea for both air-water gas exchange and dry/wet deposition was observed. The gas deposition of BDE-209 had a strong dependence on the gaseous concentration, which was in turn governed by atmospheric transport. For Br<10-BDEs, which have been prohibited in recent years, the gas exchange almost reached equilibrium at the air-water interface during the whole observation period. However, a strong net gas volatilization was observed for legacy ΣICESPCBs especially in the flood season, and the volatilization was significantly associated with ambient parameter-wind speed. These remarkably different exchange dynamics of PBDEs and PCBs at the air-water interface over the YRE could be attributed to their primary emission intensity and inconsistent environmental transport pathways. The reversal of the source-sink fates of BDE-209 and legacy PCBs suggest that the strongly human-influenced large river estuary water could act as a source-sink buffer for POPs during the switch from approved to prohibited usage. © 2020. American Geophysical Union. All Rights Reserved.
英文关键词	air-water gas exchange; BDE-209; PCB; source-sink fate; transport pathway
语种	英语
来源期刊	Journal of Geophysical Research: Atmospheres
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/185921
作者单位	Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention, Department of Environmental Science and Engineering, Fudan University, Shanghai, China; Institute of Eco-Chongming (IEC), Shanghai, China; College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, China
推荐引用方式 GB/T 7714	Guo T.,Li Y.,Lin T.,et al. Exchange Dynamics of Typical Emerging and Legacy Persistent Organic Pollutants at the Air-Water Interface Over a Strongly Human-Influenced Large River Estuary[J],2020,125(13).
APA	Guo T.,Li Y.,Lin T.,Wu Z.,Jiang Y.,&Guo Z..(2020).Exchange Dynamics of Typical Emerging and Legacy Persistent Organic Pollutants at the Air-Water Interface Over a Strongly Human-Influenced Large River Estuary.Journal of Geophysical Research: Atmospheres,125(13).
MLA	Guo T.,et al."Exchange Dynamics of Typical Emerging and Legacy Persistent Organic Pollutants at the Air-Water Interface Over a Strongly Human-Influenced Large River Estuary".Journal of Geophysical Research: Atmospheres 125.13(2020).