Painted surfaces--important sources of polychlorinated biphenyls (PCBs) contamination to the urban and marine environment

Environmental Pollution
Morten JartunTore Volden

Abstract

A study of a large number of samples of flaking old paint from various buildings in Bergen, Norway (N=68) suggests that paint may be the most important contemporary source of PCBs in this urban environment with concentrations of PCB(7) up to 3.39 g/kg. Twenty-three of the samples were collected from a single building, and the concentrations were found to vary over 3 orders of magnitude. In addition, 16 concrete samples from a large bridge previously coated with PCB-containing paint were collected and separated into outer- and inner samples indicating that PCBs are still present in high concentrations subsequent to renovation. PCBs were found in several categories of paint from wooden and concrete buildings, potentially introduced to the environment by natural weathering, renovation, and volatilization. Consequently, this dispersion may lead to increased levels of PCBs in urban atmospheres, soils, and harbor sediments where high concentrations have resulted in Governmental advice against consumption of certain seafood.

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Citations

May 23, 2015·Environmental Science and Pollution Research International·Kathleen W BrownDavid L MacIntosh
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Sep 9, 2015·Environmental Science & Technology·Cong LiuYinping Zhang
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Dec 18, 2021·Archives of Environmental Contamination and Toxicology·Guilherme R LotufoAllen D Uhler

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