International Waters learning Exchange & Resource Network

Persistant toxic substances (PTS) sources and pathways

In general, the human environment is a combination of the physical, chemical, biological, social and cultural factors that affect human health. It should be recognized that exposure of humans to PTS can, to certain extent, be dependant on each of these factors. The precise role differs depending on the contaminant concerned, however, with respect to human intake, the chain consisting of ‘source – pathway – biological availability’ applies to all contaminants. Leaving aside the biological aspect of the problem, this chapter focuses on PTS sources, and their physical transport pathways.

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

11 Aug 2014


Persistant toxic substances (PTS) sources and pathways.pdf