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Toxic Contamination of Freshwater Fish–4th edition, 2021

État intermédiaire Détérioration depuis 2002 pour le mercure et amélioration pour les BPC, les penta-BDE et stable pour les dioxines et furanes

Highlights

The study on contamination of freshwater fish over the years 2016-2019 shows that depending on the species of fishes and sizes studied, only mercury levels in flesh exceeded standards or criteria, and only occasionally. 

Since 1996-2002 the trend is upward for mercury on the north and south shores of Lac Saint-Pierre and the north shore of Lac Saint-Louis. In 2016, mercury levels in the flesh of Northern Pike on the south shore of Lac Saint-Louis greatly exceeded the Canadian standard. Concentrations of other substances such as polychlorinated biphenyls (PCBs), polybrominated diphenyl ethers (PBDEs) and dioxins and furans are decreasing or stable.
 

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