Human health effects of selected pesticides, chloroaniline derivatives.

The health effects of two pesticides, chlordimeform and propanil, are discussed. Chlordimeform and 2-methyl-4-chloroaniline, a major metabolite of chlordimeform, cause severe hemorrhagic cystitis in humans. In cats, however, only a mild effect on the bladder was noted. The herbicide propanil has produced chloracne in humans, and along with 3,4-dichloroaniline, hyperkeratosis in rabbits. The contaminants 3,4,3',4'-tetrachloroazobenzene and 3,4,3',4'-tetrachloroazoxybenzene are responsible for the chloracnegenic characteristics of propanil, 3,4-dichloroaniline, and methazole.