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KMID : 0893320080230030143
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Journal of Environmental Toxicology
2008 Volume.23 No. 3 p.143 ~ p.164
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Environmental Distribution and Fate of Perfluorinated Compounds (PFCs) as Emerging POPs: Physico-Chemical Properties, Emission, Contamination Level, Inter-phase Distribution and Long-Range Transport
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Kim Seung-Kyu
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Abstract
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Concern about perfluorinated compounds (PFCs) is growing nationally as well as globally. PFCs could be considered emerging POPs due to their environmentally persistent, bioaccumulative, and potentially harmful properties. Moreover, perfluoroalkylates (PFAs) such as PFOS and PFOA are reported to experience long-range transport (LRT) to the Arctic in spite of their low volatility and strong solubility. The possible pathways contributing to LRT have been proposed but are still in debate in combination with unclear source definition and uncertain physico-chemical properties. The environmental fate of PFCs is more complicated because of the presence of precursors that are degraded to PFAs and are extremely different from their daughters, PFAs, in physico-chemical properties. To what extent and through what pathways are human and wildlife exposed is determined by the environmental fate and distribution of PFCs. To define uncertainties in fate and distribution thus is critical to prevent erroneous policy and/or determination related with exposure and risk reduction. This article aimed to review controversy and/or uncertain issues for the environmental fate and distribution of PFCs and to prospect research topics necessary to dissolve uncertainties.
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KEYWORD
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PFCs, precursor, environmental fate, long-range transport, emission
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