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Chlorinated paraffi...
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Fridén, Ulrika E.Stockholms universitet,Institutionen för tillämpad miljövetenskap (ITM)
(författare)
Chlorinated paraffins in the Swedish atmosphere : spatial and seasonal variability
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Nummerbeteckningar
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LIBRIS-ID:oai:DiVA.org:su-43556
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https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-43556URI
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Språk:engelska
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Sammanfattning på:engelska
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Ämneskategori:vet swepub-contenttype
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Ämneskategori:ovr swepub-publicationtype
Anmärkningar
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Chlorinated paraffins (CPs) are ubiquitous environmental contaminants of concern, as indicated by the recent addition of the short-chained CPs as a new Persistent Organic Pollutant (POP) in the United Nations Eco-nomic Commission for Europe (UNECE) Convention on Long-Range Transboundary Air Pollution (CLRTAP) (United Nations, 2010). Howev-er, knowledge about the occurrence of CPs in the environment, and in the atmosphere in particular, is limited. To address this, ambient air samples were collected over a 10 month period at an urban site and a rural site in Sweden, and analyzed for the sum of the short-chained, me-dium-chained and long-chained CPs. The CP concentrations ranged from 0.7-33 ng/m3, and they were significantly higher at the urban site. The low volatile CP congeners dominated in the samples, and this domin-ance was more pronounced at the urban site. Particle-bound and ga-seous CPs were determined separately in several samples, and between 50 and 90 % of the CPs were estimated to be in the gas phase. A clear seasonality in the concentrations was observed, with levels in summer that were about 5 times higher than in winter. This indicates that tem-perature dependent emission from urban sources is a major source of the CPs in air. Diffusive emissions from building materials are likely to make a major contribution.
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Biuppslag (personer, institutioner, konferenser, titlar ...)
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Järnberg, UlfStockholms universitet,Institutionen för tillämpad miljövetenskap (ITM)
(författare)
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McLachlan, Michael S.Stockholms universitet,Institutionen för tillämpad miljövetenskap (ITM)(Swepub:su)mmcla
(författare)
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Stockholms universitetInstitutionen för tillämpad miljövetenskap (ITM)
(creator_code:org_t)
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