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Atmospheric deposit...
Atmospheric deposition, retention, and stream export of dioxins and PCBs in a pristine boreal catchment
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- Bergknut, Magnus (author)
- Umeå universitet,Kemiska institutionen
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- Laudon, Hjalmar (author)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för skogens ekologi och skötsel,Department of Forest Ecology and Management
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- Jansson, Stina (author)
- Umeå universitet,Kemiska institutionen,Arcum
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- Larsson, Anna (author)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för skogens ekologi och skötsel,Department of Forest Ecology and Management
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Gocht, Tilman (author)
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- Wiberg, Karin (author)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Umeå universitet,Kemiska institutionen,Institutionen för vatten och miljö,Department of Aquatic Sciences and Assessment,Umeå University
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(creator_code:org_t)
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- Elsevier BV, 2011
- 2011
- English.
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In: Environmental Pollution. - : Elsevier BV. - 0269-7491 .- 1873-6424. ; 159:6, s. 1592-1598
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://res.slu.se/i...
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Abstract
Subject headings
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- The mass-balance between diffuse atmospheric deposition of organic pollutants, amount of pollutants retained by the terrestrial environment, and levels of pollutants released to surface stream waters was studied in a pristine northern boreal catchment. This was done by comparing the input of atmospheric deposition of polychlorinated dibenzo-p-dioxins and furans (PCDD/Fs) and PCBs with the amounts exported to surface waters. Two types of deposition samplers were used, equipped with a glass fibre thimble and an Amberlite sampler respectively. The measured fluxes showed clear seasonality, with most of the input and export occurring during winter and spring flood, respectively. The mass balance calculations indicates that the boreal landscape is an effective sink for PCDD/Fs and PCBs, as 96.0-99.9 % of received bulk deposition was retained, suggesting that organic pollutants will continue to impact stream water in the region for an extended period of time.
Subject headings
- NATURVETENSKAP -- Kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences (hsv//eng)
- LANTBRUKSVETENSKAPER -- Annan lantbruksvetenskap -- Miljö- och naturvårdsvetenskap (hsv//swe)
- AGRICULTURAL SCIENCES -- Other Agricultural Sciences -- Environmental Sciences related to Agriculture and Land-use (hsv//eng)
Keyword
- dioxin
- atmospheric deposition
- diffuse pollution
- retention
- catchment
Publication and Content Type
- ref (subject category)
- art (subject category)
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