PMID: 16519303Mar 8, 2006Paper

Tree swallow (Tachycineta bicolor) exposure to polychlorinated biphenyls at the Kalamazoo River superfund site, Michigan, USA

Environmental Toxicology and Chemistry
Arianne M NeighJohn P Giesy

Abstract

In 1990, a portion of the Kalamazoo River in Michigan, USA, was designated a Superfund site because of the presence of polychlorinated biphenyls (PCBs) in the sediment and floodplain soils. During a four-year period from 2000 to 2003, several avian species were monitored for reproductive effects and concentrations of PCBs in tissues attributed to food chain transfer from contaminated sediments. The tree swallow (Tachycineta bicolor) was chosen as a model receptor for contamination of passerine species. A top-down methodology was used to evaluate the bioaccumulation of PCBs, including non-ortho and mono-ortho congeners, in tree swallow eggs, nestlings, and adults at the Kalamazoo River area of concern (KRAOC) and at an upstream reference site. Generally, a sixfold difference in tissue concentrations of total PCBs was observed between the two sites with concentrations in eggs and nestlings at the KRAOC ranging from 0.95 to 15 microg PCB/g wet weight. Concentrations of 2,3,7,8-tetrachlorodibenzo-p-dioxin equivalents (TEQsWHO Avian) for PCBs, based on bird-specific World Health Organization toxic equivalence factors, were 10- to 30-fold greater in the KRAOC than at the reference location. Egg and nestling TEQsWHO-Avian ranged from ...Continue Reading

Citations

Nov 7, 2009·Archives of Environmental Contamination and Toxicology·Timothy B FredricksJohn P Giesy
Oct 14, 2008·Environmental Monitoring and Assessment·Rita Marie SestonJohn Paul Giesy
Feb 7, 2007·Journal of Environmental Sciences (China)·Zhan-bo HuHai-nan Kong
Feb 4, 2006·Journal of Toxicology and Environmental Health. Part a·Arianne M NeighJohn P Giesy
Feb 28, 2018·Environmental Science & Technology·Renske P J HoondertMark A J Huijbregts

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