Atmospheric pathways of chlorinated pesticides and natural bromoanisoles in the northern Baltic Sea and its catchment

被引：18

作者：

Bidleman, Terry ^{[1
]}

Agosta, Kathleen ^{[1
]}

Andersson, Agneta ^{[2
]}

Brorstrom-Lunden, Eva ^{[3
]}

Haglund, Peter ^{[1
]}

Hansson, Katarina ^{[3
]}

Laudon, Hjalmar ^{[4
]}

Newton, Seth ^{[5
]}

Nygren, Olle ^{[1
]}

Ripszam, Matyas ^{[1
]}

Tysklind, Mats ^{[1
]}

Wiberg, Karin ^{[6
]}

机构：

[1] Umea Univ, Dept Chem, S-90187 Umea, Sweden

[2] Umea Univ, Dept Ecol & Environm Sci, S-90187 Umea, Sweden

[3] IVL Swedish Environm Res Inst, S-40014 Gothenburg, Sweden

[4] Swedish Univ Agr Sci SLU, S-90183 Umea, Sweden

[5] Stockholm Univ, Dept Environm Sci & Analyt Chem ACES, S-10691 Stockholm, Sweden

[6] Swedish Univ Agr Sci SLU, Dept Aquat Sci & Assessment, S-75007 Uppsala, Sweden

来源：

AMBIO | 2015年 / 44卷

基金：

瑞典研究理事会;

关键词：

Baltic Sea; Bothnian Bay; Chlorinated pesticides; Natural brominated compounds; Atmospheric deposition; Air-sea exchange; PERSISTENT ORGANIC POLLUTANTS; DIBENZO-P-DIOXINS; DIPHENYL ETHERS; CLIMATE-CHANGE; DEPOSITION; EXCHANGE; FATE; HEXACHLOROCYCLOHEXANES; HEXACHLOROBENZENE; ENVIRONMENT;

D O I：

10.1007/s13280-015-0666-4

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Long-range atmospheric transport is a major pathway for delivering persistent organic pollutants to the oceans. Atmospheric deposition and volatilization of chlorinated pesticides and algae-produced bromoanisoles (BAs) were estimated for Bothnian Bay, northern Baltic Sea, based on air and water concentrations measured in 2011-2012. Pesticide fluxes were estimated using monthly air and water temperatures and assuming 4 months ice cover when no exchange occurs. Fluxes were predicted to increase by about 50 % under a 2069-2099 prediction scenario of higher temperatures and no ice. Total atmospheric loadings to Bothnian Bay and its catchment were derived from air-sea gas exchange and "bulk'' (precipitation ? dry particle) deposition, resulting in net gains of 53 and 46 kg year(-1) for endosulfans and hexachlorocyclohexanes, respectively, and net loss of 10 kg year(-1) for chlordanes. Volatilization of BAs releases bromine to the atmosphere and may limit their residence time in Bothnian Bay. This initial study provides baseline information for future investigations of climate change on biogeochemical cycles in the northern Baltic Sea and its catchment.

引用

页码：S472 / S483

页数：12

共 52 条

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