Encara no tenim significats per a "know carcinogens".
1PFCs accumulate in soil and water, and are known carcinogens.
2Known carcinogens such as tobacco are legal.
3The WHO said both substances are known carcinogens and using them together worsens their impact and heightens addictiveness.
4As a possible explanation of these findings a reduced exposure to well known carcinogens such as cigarette smoke may be relevant.
5Caution should be used in situations where exposure to known carcinogens is combined with thermal exposures high enough to cause tissue damage.
6Since more than half of all known carcinogens are hepatocarcinogens in rodents, the initial 8-week bioassay is able to detect most carcinogens.