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Nomination Summary for Silica, crystalline-quartz (N91216)

Nominated Substances: Silica, crystalline - quartz

Nomination Date: 04/05/1991

Nominator: California EPA

Rationale: Widespread occurrence; classified as potential human carcinogen by IARC; need for additional evaluation.

NTP Principles: not specified

Agents and Status

The following information relates to the specific agent and may include history from earlier or later nominations for this same agent.

CASRN: 14808-60-7

Agent Name: Silica, crystalline - quartz