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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
chemistry
Levels of PCBs in wild bird eggs: Considering toxicity through enzyme induction potential and molecular structure
Chemosphere, Volume 90, No. 3, Year 2013
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Description
Polychlorinated biphenyls (PCBs) were analysed in wild bird eggs from industrialised areas in South Africa. The concentration, congener profile, feeding guild, potential associated risk and biology were investigated. PCBs were detected in all eggs with 30 congeners present in more than 80% of the samples. Σ34PCB concentrations ranged between 0.9 and 296ngg-1wet weight (ww). The metabolic potential of the PCB metabolic groups showed good agreement with the biodegradability of the individual congeners. Phenobarbital-type (PB-type) inducer PCBs were prevalent, indicating the predominance of less toxic PCB congeners. However, non-ortho PCBs which were not included in the current analyses, could affect the toxic potential of the PCBs in the eggs requiring more investigation. Although the current levels of PCBs measured do not indicate a health risk to the birds assessed, the presence of mono-ortho PCBs at appreciable levels motivates for the assessment of dioxin-like chemicals in wild bird eggs. © 2012 Elsevier Ltd.
Authors & Co-Authors
Quinn, Laura P.
South Africa, Potchefstroom
North-west University
South Africa, Pretoria
National Metrology Institute of South Africa
Roos, Claudine
South Africa, Potchefstroom
North-west University
Pieters, Rialet
South Africa, Potchefstroom
North-west University
Løken, Katharina Bjarnar
Norway, As
Norges Miljø- og Biovitenskapelige Universitet
Polder, Anuschka
Norway, As
Norges Miljø- og Biovitenskapelige Universitet
Skaåre, Janneche Utne
Norway, As
Norges Miljø- og Biovitenskapelige Universitet
Bouwman, Hindrik
South Africa, Potchefstroom
North-west University
Statistics
Citations: 18
Authors: 7
Affiliations: 3
Identifiers
Doi:
10.1016/j.chemosphere.2012.09.016
ISSN:
00456535
e-ISSN:
18791298
Research Areas
Environmental
Noncommunicable Diseases
Study Locations
South Africa