ABC - DEF - GHI - JKL - MNO - PQRS - TUV - WXYZ
A substance that is either present in an environment where it does not belong or is present at levels that might cause harmful effects to humans or the environment.
Source & ©: GreenFacts
Concentration - Environmental media
Español: Contaminante(s)
Français: Polluant(s)
