the process whereby certain toxic substances collect in living tissues, thus posing a substantial hazard to human health or the environment
Hea teada
Bioconcentration [ IATE:1398629 ] refers only to the uptake of substances into the organism from water alone.
Bioaccumlation is the more general term because it includes all means (food and environment) of uptake into the organism.
Biomagnification [ IATE:1735312 ] occurs in a food chain. [IATE]