| drought promotes increases in total mercury and methylmercury concentrations in fish from the lower paraíba do sul river, southeastern brazil. | bioaccumulation of mercury and methylmercury in fish represents a serious risk to human beings. extreme climate events like droughts may increase the trophic transfer of contaminants and net methylation of mercury. the present study assessed the influence of the 2014 drought on total mercury and methylmercury levels in fish from the lower paraiba do sul river basin. contaminant levels were compared for pimelodus fur, pachyurus adspersus, pimelodella lateristriga, oligosarcus hepsetus, and crenic ... | 2018 | 29579683 |