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Sea-air exchange of...
Sea-air exchange of bromoanisoles and methoxylated bromodiphenylethers in the Northern Baltic
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- Bidleman, Terry F. (author)
- Umeå universitet,Kemiska institutionen,Arcum ; EcoChange
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- Agosta, Kathleen (author)
- Umeå universitet,Kemiska institutionen
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- Andersson, Agneta (author)
- Umeå universitet,Institutionen för ekologi, miljö och geovetenskap,Arcum
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- Haglund, Peter (author)
- Umeå universitet,Kemiska institutionen
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- Liljelind, Per (author)
- Umeå universitet,Kemiska institutionen
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Hegmans, Alyse (author)
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Jantunen, Liisa M. (author)
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- Nygren, Olle (author)
- Umeå universitet,Kemiska institutionen,Arcum
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Poole, Justen (author)
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- Ripszam, Matyas (author)
- Umeå universitet,Kemiska institutionen
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- Tysklind, Mats (author)
- Umeå universitet,Kemiska institutionen,Arcum
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(creator_code:org_t)
- Elsevier, 2016
- 2016
- English.
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In: Marine Pollution Bulletin. - : Elsevier. - 0025-326X .- 1879-3363. ; 112:1-2, s. 58-64
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- Halogenated natural products in biota of the Baltic Sea include bromoanisoles (BAs) and methoxylated bromodiphenyl ethers (MeO-BDEs). We identified biogenic 6-MeO-BDE47 and 2'-MeO-BDE68 in Baltic water and air for the first time using gas chromatography - high resolution mass spectrometry. Partial pressures in air were related to temperature by: log p/Pa=m/T(K)+b. We determined Henry's law constants (HLCs) of 2,4-dibromoanisole (2,4-DiBA) and 2,4,6-tribromoanisole (2,4,6-TriBA) from 5 to 30°C and revised our assessment of gas exchange in the northern Baltic. The new water/air fugacity ratios (FRs) were lower, but still indicated net volatilization in May-June for 2,4-DiBA and May - September for 2,4,6-TriBA. The net flux (negative) of BAs from Bothnian Bay (38,000km2) between May - September was revised from -1319 to -532kg. FRs of MeO-BDEs were >1, suggesting volatilization, although this is tentative due to uncertainties in their HLCs and binding to dissolved organic carbon.
Subject headings
- NATURVETENSKAP -- Kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences (hsv//eng)
Keyword
- Air-water exchange
- Baltic Sea
- Bromoanisoles
- Halogenated natural products
- Methoxylated bromodiphenyl ethers
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Bidleman, Terry ...
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Agosta, Kathleen
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Andersson, Agnet ...
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Haglund, Peter
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Liljelind, Per
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Hegmans, Alyse
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Jantunen, Liisa ...
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Nygren, Olle
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Poole, Justen
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Ripszam, Matyas
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Tysklind, Mats
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Chemical Science ...
- Articles in the publication
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Marine Pollution ...
- By the university
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Umeå University