Elevated polychlorinated dibenzodioxin and dibenzofuran concentrations in grebes, ducks, and their prey near Port Alberni, British Columbia, Canada
1993; Elsevier BV; Volume: 26; Issue: 8 Linguagem: Inglês
10.1016/0025-326x(93)90530-w
ISSN1879-3363
AutoresKees Vermeer, Walter J. Cretney, John E. Elliott, Ross J. Norstrom, Philip E. Whitehead,
Tópico(s)Carcinogens and Genotoxicity Assessment
ResumoIn 1989, eight estuarine bird species were collected from the Somass River estuary, downstream of the Port Alberni Pulp and Paper Mill. Their livers were analysed for 2,3,7,8-substituted polychlorinated dibenzodioxin (PCDD) and polychlorinated dibenzofuran (PCDF) residues. All birds contained PCDD and PCDF residues, but the highest levels were found in Red-necked (Podiceps grisegena), and Western (Aechmophorus occidentalis) grebes. Elevated PCDD levels were also detected in Corophium amphipods collected in 1991 (present in stomachs of most bird species examined) in the estuary. The birds may have acquired the PCDDs, and PCDFs, from eating contaminated Corophium.
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