Assertion: heavy metal | /r/HasProperty | released into the environment
Facets:
value: by aforementioned anthropogenic activities
type: CAUSE
Source sentences:
text: Soils are the major sink for heavy metals released into the environment by aforementioned anthropogenic activities and unlike organic contaminants which are oxidized to carbon (IV) oxide by microbial action, most metals do not undergo microbial or chemical degradation , and their total concentration in soils persists for a long time after their introduction .