Опубликована: Янв. 1, 2023

The contribution of increased rainfall frequency and intensity towards the impacts urban pollution is gaining more attention in these times climate change. purpose this study was to examine toxicological combined sewers overflows a municipal effluent discharge sites during 3 periods (years) varying precipitations freshwater mussels Elliptio complanata. Mussels were placed benthic cages for months summer at 2 overflow 8 km downstream including an upstream site three consecutive years with low (164 mm), medium (182 mm) high (248 amounts rain. results revealed that effects mainly influenced by suspended matter loadings dissolved components lesser extent. Impacts noticeable reproduction (vitellogenin), genotoxicity, neurotoxicity (dopamine serotonin changes) levels addition xenobiotic biotransformation glutathione S-transferase activity metallothioneins organic heavy metals respectively. produced most compared Saint-Lawrence River. However, could become problematic dilution systems such as small river lakes.

Язык: Английский