chemical and cancer的关系

Human tumor about 80% due to contact with the outside world caused, most of them caused by carcinogenic chemical quality. The epidemiological investigation and animal experiments proved to be carcinogenic role of the chemical has already reached thousands.

1, nitrosamines category, which is more of a class of carcinogens, can cause many types of cancer chemical carcinogenic substances. Metamorphism in the vegetables and foods with higher levels, can cause digestive system, kidney and other organ tumors.

2, polycyclic aromatic hydrocarbons categories, such carcinogen benzopyrene to be represented in it Tu animal skin, can cause skin cancer, the phrase can be induced by subcutaneous injection of sarcoma. Extensive presence of such substances in asphalt, vehicle exhaust, soot, cigarettes and smoked foods.

3, aromatic amines, widely used in rubber, pharmaceutical, printing and dyeing, plastics, and other industries, can be induced urina