1. Acetamide is classified as a potentially carcinogenic substance

2. Chicken bottom contain carcinogenic substance, don't eat well.

3. But discover it is a kind of carcinogenic substance before long, accordingly by taboo.

4. Benzene is a carcinogenic substance that is present in a great number of modern products and industries. It is formed through both natural processes and human activities, but importantly, high level of exposure to Benzene can be quite dangerous.