Table 1. Occupational agents, groups of agents, mixtures, and exposure circumstances classified by the IARC Monographs, Vols 1–77 (IARC, 1972–2001), into Groups 1 and 2A, which have the skin as the target organ and for which burden has been estimated.

Agents, mixture, circumstance	Main industry, use	Evidence of carcinogenicity in humans	Source of data for estimation of numbers ever exposed over REP	Comments
Group 1: Carcinogenic to humans
Agents, groups of agents
Mineral oils, untreated and mildly treated	Production; used as lubricant by metal workers, machinists, engineers; printing industry (ink formulation); used in cosmetics, medicinal and pharmaceutical preparations	NMSC sufficient	LFS	In addition includes shale oils or shale-derived lubricants
Solar radiation	Outdoor workers	NMSC sufficient Melanoma sufficient	CAREX
Coal tar and pitches (Polycyclic aromatic hydrocarbons)	Production of refined chemicals and coal tar products (patent fuel); coke production; coal gasification; aluminium production; foundries; road paving and construction (roofers and slaters)	NMSC sufficient	LFS	In addition includes soots, and creosotes
Group 2A: Probably carcinogenic to humans
Agents, groups of agents
Ultraviolet radiation (A, B and C) from artificial sources	Arc welding; industrial photoprocesses; sterilisation and disinfection; phototherapy; operating theatres; laboratories; ultraviolet fluorescence in food industry; insect traps	Melanoma of skin inadequate		Predominantly harms the eyes thus calculated for melanoma of the eye only

Abbreviations: CAREX=CARcinogen EXposure database; IARC=International Agency for Research on Cancer; LFS=Labour Force Survey; REP=risk exposure period.