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Toxicological information

Carcinogenicity

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Description of key information

According to Column 2 of REACH Annex X, a carcinogenicity study may be required if the substance has a widespread dispersive use or there is evidence of frequent or long-term human exposure and the substance is classified as mutagen category 3 or there is evidence from the repeated dose study(ies) that the substance is able to induce hyperplasia and/or pre-neoplastic lesions. The inhalation route is the most likely route of exposure for tungsten metal and it is not classified as a mutagen and there was no evidence of hyperplasia and/or pre-neoplastic lesions in a 28-day inhalation study on tungsten blue oxide used for read-across for tungsten metal.

Key value for chemical safety assessment

Carcinogenicity: via oral route

Endpoint conclusion
Endpoint conclusion:
no study available

Carcinogenicity: via inhalation route

Endpoint conclusion
Endpoint conclusion:
no study available

Carcinogenicity: via dermal route

Endpoint conclusion
Endpoint conclusion:
no study available

Additional information

Justification for classification or non-classification

No carcinogenicity data are available for tungsten metal. Therefore, classification cannot be made due to lack of data.