the blood of people living near the river elbe who eat contaminated fish from the river was checked for organochlorines ( n = 136 ) : hexachlorobenzene , hcb , the hexachlorocyclohexanes beta-hch , gamma-hch , octachlorostyrene , ocs , p , p-dde and mercury , hg ( n = 43 ) .
C0020247
organochlorines
C0011038
p , p-dde