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Known and Probable Human Carcinogens. Many people worry that substances or exposures in their environment may cause cancer. As part of the American Cancer Society’s role in informing and educating people about cancer and its possible causes, this document provides lists of substances and exposures that are known or suspected to cause cancer.


The National Toxicology Program of the U.S. Department of Health and Human Services is mandated to produce a biennial Report on Carcinogens. As of June 2011, the latest edition was the 12th report (2011). It classifies carcinogens into two groups: Known to be a human carcinogen; Reasonably anticipated being a human carcinogen


What scientists do know is that there are factors that increase your risk, that trigger the growth and spread of cancer in your body. For some forms of cancer, the risk factors are specific. One known trigger for cancer is carcinogens. Carcinogens are chemical, physical, biological, or any substances that are agents in causing cancer.


Carcinogens (substances that cause cancer) are around us every day. Some carcinogens directly modify DNA to create cancer, while others cause cells to multiply at a faster than normal rate, increasing the chances of mutation. You can be exposed to carcinogens through a variety of avenues, including lifestyle factors (nutrition, tobacco use, etc.), medical treatments (radiation, chemotherapy ...


You've probably heard the word "carcinogen" pop up in news stories and wondered what that means for your everyday life. A carcinogen is something that can cause you to have cancer. It may be a ...


The 2014 edition lists 56 known human carcinogens and includes descriptions of the process for preparing the science-based report and the criteria used to list a substance as a carcinogen. IARC also produces science-based reports on substances that can increase the risk of cancer in humans.


Several radioactive substances are considered carcinogens, but their carcinogenic activity is attributed to the radiation, for example gamma rays and alpha particles, which they emit. Common examples of non-radioactive carcinogens are inhaled asbestos, certain dioxins, and tobacco smoke.


Video: What Is a Carcinogen? - Definition & Examples ... There are many known carcinogens. Some of these include tobacco, pesticides, and asbestos. Carcinogens enter our bodies by inhalation ...


Some of the potential carcinogens listed in this index may be re-evaluated by NIOSH as new data become available and the NIOSH recommendations on these carcinogens either as to their status as a potential occupational carcinogen or as to the appropriate recommended exposure limit may change.


Rocked by the news that processed meat could be terribly bad for you? Well, chimney sweeping, salted fish and fracking also appear on the list compiled by the International Agency for Research on ...