IARC gives justifications for monographs programme update

Chemical Watch – The International Agency for Research on Cancer (IARC) has outlined the “motivation and methodology” for the update to its monographs programme. In a commentary paper, IARC provides justification for changes to the programme’s “preamble”, which describes the procedures for the evaluation of a carcinogenicity hazard. Previously, there were five categories corresponding to groups 1, 2A, 2B, 3 and 4. The update removed group 4 (probably not carcinogenic to humans).
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