Industrial chemical pollutant from manufacture of adhesives, synthetic fibers, refrigerants and plastic wraps.

1,2-Dichloroethane is a chemical used in the production of vinyl chloride; it is released as a pollutant from industrial chemical factories.

1,2,4-Trichlorobenzene is a pollutant from textile finishing factories and industrial chemical manufacturing.

1,2,4-Trimethylbenzene is a chemical intermediate, industrial solvent, and component of gasoline, coal tar and petroleum products.

2,4-D is a chlorophenol herbicide used on row crops, lawns and golf courses.