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Persistent organic pollutants in the Atlantic and southern oceans and oceanic atmosphere
Virginia Institut of Marine Science, USA; niversity of Maryland Center for Environmental Sciences, Solomons, USA.
Virginia Institute of Marine Science, USA.
Virginia Institute of Marine Science, USA.
Colorado School of Mines, Golden, USA.
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2017 (English)In: Science of the Total Environment, ISSN 0048-9697, E-ISSN 1879-1026, Vol. 583, 64-71 p.Article in journal (Refereed) Published
Abstract [en]

Persistent organic pollutants (POPs) continue to cycle through the atmosphere and hydrosphere despite banned or severely restricted usages. Global scale analyses of POPs are challenging, but knowledge of the current distribution of these compounds is needed to understand the movement and long-term consequences of their global use. In the current study, air and seawater samples were collected Oct. 2007- Jan. 2008 aboard the Icebreaker Oden en route from Göteborg, Sweden to McMurdo Station, Antarctica. Both air and surface seawater samples consistently contained α-hexachlorocyclohexane (α-HCH), γ-HCH, hexachlorobenzene (HCB), α-Endosulfan, and polychlorinated biphenyls (PCBs). Sample concentrations for most POPs in air were higher in the northern hemisphere with the exception of HCB, which had high gas phase concentrations in the northern and southern latitudes and low concentrations near the equator. South Atlantic and Southern Ocean seawater has a high ratio of α-HCH to γ-HCH, indicating persisting levels from technical grade sources. The Atlantic and Southern Ocean continue to be net sinks for atmospheric α-, γ-HCH, and Endosulfan despite declining usage.

Place, publisher, year, edition, pages
2017. Vol. 583, 64-71 p.
Keyword [en]
Antarctica, POPs, organochlorine pesticides, ai-sea flux
National Category
Environmental Sciences Oceanography, Hydrology, Water Resources Meteorology and Atmospheric Sciences Other Chemistry Topics
Identifiers
URN: urn:nbn:se:liu:diva-134425DOI: 10.1016/j.scitotenv.2016.12.189ISI: 000394556400007OAI: oai:DiVA.org:liu-134425DiVA: diva2:1073582
Funder
Swedish Research CouncilSwedish Polar Research Secretariat
Note

Funding agencies: Swedish Research Council; National Science Foundation Office of Polar Programs [0741379]; NSF Research Experience for Undergraduates [0552612]; Virginia Institute of Marine Science, College of William Mary [3605]

Available from: 2017-02-11 Created: 2017-02-11 Last updated: 2017-04-20

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The full text will be freely available from 2019-01-15 19:25
Available from 2019-01-15 19:25

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Citation style
  • apa
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