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Table 3 Carcinogenicity classifications and sources of exposures of chemicals found in non-EDC industrial chemicals

From: State of the evidence 2017: an update on the connection between breast cancer and the environment

Chemical IARC NTP Source of exposures
Non-EDC Industrial Chemicals
 Benzene 1 K Petrochemical solvent
 Vinyl chloride 1 K Monomer used in polyvinyl chloride (PVC) plastic
 1,3-Butadiene 1 K Byproduct of combustion
 Ethylene oxide 1 K Sterilizer, byproduct contaminant in some cosmetics
  1. International Agency for Research on Cancer (IARC) classifications: 1 = Carcinogenic to humans, 2A = Probably carcinogenic to humans, 2B = Possibly carcinogenic to humans, 3 = Not classifiable as to its carcinogenicity to humans; U.S. National Toxicology Program (NTP) classifications: K = Known to be a human carcinogen, RA = Reasonably anticipated to be a human carcinogen. Source of exposure list contains most common exposure sources