Ua rau Mob Cancer Los ntawm Coal Tar

3,4-Benzopyrene tam sim no nyob rau hauv thee tar yog lees paub tias yog ib tug loj carcinogen.

Cov tshuaj no muaj nyob rau hauv ntau qhov chaw, suav nrog cov pa luam yeeb los ntawm cov chaw ua haujlwm, luam yeeb, tsheb tso zis, thiab nyob rau hauv cov nqaij smoked ua thaum lub sij hawm barbecuing.