In everyday life, a variety of factors have an effect on carcinogenesis.
A variety of factors contribute to the risk of carcinogenesis. This figure summarizes cancer-related effects from the perspective of the ordinary citizen, so as to make it understandable to the general population, based on the effects of carcinogens. In terms of the content in detail, the International Agency for Research on Cancer (IARC) has published a list of various substances grouped into four levels, ranging from those like radiation with a clear causal carcinogenic relationship, to those with a low likelihood of carcinogenesis. In addition, the Japanese Ministry of Health, Labour and Welfare has publically designated 72 chemical substances for industrial use as “Specified Chemical Substances.” These are liable to cause occupational-related cancers in laborers, as well as dermatitis, neurological impairments, and other symptoms. The Ministry also prescribes Ordinance on Prevention of Hazards Due to Specified Chemical Substances so as to establish special countermeasures for these substances.