List of IARC Group 2B carcinogens

Substances, mixtures and exposure circumstances in this list have been classified by the International Agency for Research on Cancer (IARC) as Group 2B: The agent (mixture) is possibly carcinogenic to humans. The exposure circumstance entails exposures that are possibly carcinogenic to humans. This category is used for agents, mixtures and exposure circumstances for which there is limited evidence of carcinogenicity in humans and less than sufficient evidence of carcinogenicity in experimental animals. It may also be used when there is inadequate evidence of carcinogenicity in humans but there is sufficient evidence of carcinogenicity in experimental animals. In some instances, an agent, mixture or exposure circumstance for which there is inadequate evidence of carcinogenicity in humans but limited evidence of carcinogenicity in experimental animals together with supporting evidence from other relevant data may be placed in this group. Further details can be found in the preamble to the IARC Monographs.

Agents and groups of agents

Column-generating template families

The templates listed here are not interchangeable. For example, using {{col-float}} with {{col-end}} instead of {{col-float-end}} would leave a HTML "div" (division) open, potentially harming any subsequent formatting.

Column templates

Type	Family	Handles wiki  table code?	Responsive/ Mobile suited	Start template	Column divider	End template
Float	"Col-float"	Yes	Yes	{{Col-float}}	{{Col-float-break}}	{{Col-float-end}}
	"Columns-start"	Yes	Yes	{{Columns-start}}	{{Column}}	{{Columns-end}}
Columns	"Div col"	Yes	Yes	{{Div col}}	–	{{Div col end}}
	"Columns-list"	No	Yes	{{Columns-list}} (wraps div col)	–	–
Flexbox	"Flex columns"	No	Yes	{{Flex columns}}	–	–
Table	"Col"	Yes	No	{{Col-begin}}, {{Col-begin-fixed}} or {{Col-begin-small}}	{{Col-break}} or {{Col-2}} .. {{Col-5}}	{{Col-end}}

Can template handle the basic wiki markup {| | || |- |} used to create tables? If not, special templates that produce these elements (such as {{(!}}, {{!}}, {{!!}}, {{!-}}, {{!)}})—or HTML tags (<table>...</table>, <tr>...</tr>, etc.)—need to be used instead.

Mixtures

• Bitumens, extracts of steam-refined and air-refined
• Carrageenan, degraded
• Chlorinated paraffins of average carbon chain length C₁₂ and average degree of chlorination approximately 60%
• Coffee (urinary bladder, large bowel)
• Diesel fuel, marine
• Engine exhaust, gasoline
• Fuel oils, residual (heavy)
• Gasoline
• Magenta dyes (CI Basic Red and fuschins)
• Pickled vegetables (traditional in Asia)
• Polybrominated biphenyls [Firemaster BP-6, 59536-65-1]
• Toxaphene (Polychlorinated camphenes)
• Toxins derived from Fusarium moniliforme
• Welding fumes

Exposure circumstances

• Carpentry and joinery
• Cobalt metal without tungsten carbide
• Dry cleaning (occupational exposure as)
• Firefighting (occupational exposure as)
• Printing processes (occupational exposure as)
• Talc-based body powders (perineal use of)
• Textile manufacturing industry (work in)

Notes

• ^1 Evaluated as a group.
• ^2 There is limited evidence in humans that coffee drinking is carcinogenic in the urinary bladder.
• ^3 There is some evidence of an inverse relationship between coffee drinking and cancer of the large bowel.

External links

• Agents Classified by the IARC Monographs, International Agency for Research on Cancer
• IARC Monographs - Classifications - by Group
• IARC Monographs on the Evaluation of Carcinogenic Risks to Humans, Volume 51: Coffee, Tea, Mate, Methylxanthines and Methylglyoxal