The state of Wisconsin has recently issued a fish consumption advisory that includes suggested consumption rates for Lake Michigan fish, based on fish size and PCB concentration.
To evaluate the size-based exposure risk from Lake Michigan fish consumption, we estimated PCB exposure probabilities for five Lake Michigan fish species using two Bayesian models.
The models confirm that very few individuals of any of the five species are likely to have PCB concentrations low enough to fall into the category in which consumption is unrestricted.
Among smaller fish (<50 cm), brown trout have the highest PCB levels, while lake trout are the most contaminated among larger fish (>60 cm).
Eating meals from multiple individuals of some species results in a high probability that at least one of the meals will exceed 1.9 mg/kg, the upper PCB concentration recommended for consumption in the advisorv.
Mots-clés Pascal : Biphényle(polychloro), Lac Michigan, Grands Lacs Amérique, Amérique du Nord, Amérique, Poisson comestible, Pollution eau, Contamination chimique, Accumulation biologique, Comparaison interspécifique, Risque, Approche probabiliste, Hydrocarbure chloré, Milieu eau douce, Salmonidae, Pisces, Vertebrata, Modèle Bayes
Mots-clés Pascal anglais : Polychlorobiphenyl, Lake Michigan, Great Lakes of America, North America, America, Edible fish, Water pollution, Chemical contamination, Biological accumulation, Interspecific comparison, Risk, Probabilistic approach, Chlorocarbon, Freshwater environment, Salmonidae, Pisces, Vertebrata
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 98-0425282
Code Inist : 002A14D05H1. Création : 25/01/1999.