Mouse Skin Tumor Initiation-Promotion and Complete Carcinogenesis Bioassays Mechanisms and Biological Activities of Emission Samples

摘要

Extracts of scoots obtained from various source were applied to the skin of mice in an effort to identify carcinogens In these mixtures and to link these materials to the etiology of human cancer. Samples of coal chimney soot, coke oven materials industrial carbon black, oil shale soot, and gasoline vehicle exhaust materials have been examined by this method. The studies reported here have been constructed to compare the carcinogenic and tumorigenlc potency of extracts from various particulate emissions: coke ovens, diesel and gasoline vehicles and a roofing tar pot. Automobile emission samples were obtained by collecting the diluted and cooled exhaust on Teflon-coated glass fiber filters. Coke oven and roofing tar samples were particulate emission samples collected by impaction and filtration... The organic components associated with each of the particles were extracted with dichloromethane and dismally applied to SENCAR mice.