residue levels of the chlorinated hydrocarbons p , p'-ddt ( 2,2-bis ( p-chlorophenyl ) -1,1,1-trichloroethane ) , p , p'-dde ( 2,2-bis ( p-chlorophenyl ) -1,1-dichloroethane ) , hexachlorobenzene ( hcb ) , alpha- , beta- , and gamma-hexachlorocyclohexane ( hch ) , aldrin , dieldrin , and polychlorinated biphenyls ( pcbs ) were determined in human milk of kenyan mothers living in different areas of kenya .
C0020247
chlorinated hydrocarbons
C0040904
trichloroethane