تقسیم بندی عوامل براساس احتمال سرطانزایی

 

The IARC categorizes agents, mixtures and exposures into five categories

Group 1: carcinogenic to humans
Group 2A: probably carcinogenic to humans
Group 2B: possibly carcinogenic to humans
Group 3: not classifiable as to carcinogenicity in humans
Group 4: probably not carcinogenic to humans. Only one substance – caprolactam – has both been assessed for       carcinogenicity by the IARC and placed in this category