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Mar Pollut Bull. 2009;59(4-7):207-12. doi: 10.1016/j.marpolbul.2009.03.026. Epub 2009 Jun 25.

The partitioning of Triclosan between aqueous and particulate bound phases in the Hudson River Estuary.

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1
University of Massachusetts, Department of Environment, Earth and Ocean Sciences, 100 Morrissey Blvd., Boston, MA 02125, USA. bawilson13@gmail.com

Abstract

The distribution of Triclosan within the Hudson River Estuary can be explained by a balance among the overall effluent inputs from municipal sewage treatment facilities, dilution of Triclosan concentrations in the water column with freshwater and seawater inputs, removal of Triclosan from the water column by adsorption to particles, and loss to photodegradation. This study shows that an average water column concentration of 3+/-2 ng/l (in the lower Hudson River Estuary) is consistent with an estimate for dilution of average wastewater concentrations with seawater and calculated rates of adsorption of Triclosan to particles. An average Triclosan sediment concentration of 26+/-11 ng/g would be in equilibrium with the overlying water column if Triclosan has a particle-to-water partitioning coefficient of k(d) approximately 10(4), consistent with laboratory estimates.

PMID:
19559448
DOI:
10.1016/j.marpolbul.2009.03.026
[Indexed for MEDLINE]
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