The smoke and the spent canisters contain suspected carcinogens.

Smoke, or any partially burnt organic matter, contains carcinogens (cancer-causing agents).

This group contains possible carcinogens with weaker evidence, at the same level as coffee and automobile exhaust.

Evidence suggests that smoked foods may contain carcinogens.

A. bisporus contains carcinogens called hydrazines, the most abundant of which is agaritine.

Note that the kernels contain carcinogens, and are not recommended for human consumption, even prepared through traditional methods.

The gas phase of secondhand smoke contains at least 16 known or probable carcinogens.

Who would buy a toy knowing that it contained carcinogens?

But in reality we involuntarily buy toys which contain carcinogens and lead.

A few widely available products, including sassafras and comfrey, contain known carcinogens.