[Occupational lung cancer after inhalation of alkylating compounds: dichlordimethyl ether, monochlordimethyl ether and dimethyl sulphate (author's transl)].

A 42-year-old chemist died from extensive pulmonary carcinoma, having inhaled for over seven years dichlordimethyl ether, monochlordimethyl ether and small amounts of dimethyl sulphate. This exposure took place in circumstances which, in animal experiments, have led to the development of cancer. A causal connection between the occupational exposure to these chemicals and carcinogenesis has to be accepted.