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High levels of PFOS in eggs of three bird species in the neighbourhood of a fluoro-chemical plant
Lopez-Antia, A.; Dauwe, T.; Meyer, J.; Maes, K.; Bervoets, L.; Eens, M. (2017). High levels of PFOS in eggs of three bird species in the neighbourhood of a fluoro-chemical plant. Ecotoxicol. Environ. Saf. 139: 165-171. https://dx.doi.org/10.1016/j.ecoenv.2017.01.040
In: Ecotoxicology and Environmental Safety. Academic Press/Elsevier: Amsterdam, Netherlands etc. ISSN 0147-6513; e-ISSN 1090-2414, more
Peer reviewed article  

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Keyword
Author keywords
    invertivorous birds; Eggs; Perfluorooctane sulfonate; PFOS; Belgium

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Abstract
    We studied perfluorooctane sulfonate (PFOS) levels in the eggs of three primarily invertivorous bird species sampled in 2006 near a fluoro-chemical plant: the great tit (Parus major), the northern lapwing (Vanellus vanellus) and the Mediterranean gull (Larus melanocephalus). Our study reported some of the highest PFOS levels ever measured in wildlife to date (i.e. up to 46182 ng/g ww in lapwing eggs). A pronounced decrease in PFOS concentration in the Northern lapwing eggs with distance from the fluoro-chemical plant was found. A similar relationship was found for the great tit, with eggs being collected close to the fluoro-chemical plant having significantly higher PFOS levels than eggs collected 1700 m further away. When comparing the PFOS levels in eggs for the three species, collected between 1700 and 5500 m no significant differences were observed. In addition, when comparing PFOS levels in eggs between Northern lapwing and great tits closer to the plant (900–1700 m) no significant differences were found neither. Despite the high levels found in great tit eggs, plasmatic biochemical biomarker responses did not appear to be affected.

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