International Waters learning Exchange & Resource Network


The majority of the substances dealt with in this report are lipophilic, stable, and persistent. They are taken up by aquatic living organisms via diffusion over the gills and from food in the gastrointestinal tract. POPs, particularly organohalogen substances, cross the gill/gut membrane and enter the blood where they are quickly distributed to high lipid tissues such as the liver and adipose tissue. Metabolism and elimination are often slow, leading to a net increase of these substances in the organism over time (bioaccumulation).

807: Persistent Toxic Substances, Food Security, and Indigenous Peoples of the Russian North

11 Aug 2014