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.
Agent Name: Silica, crystalline - quartz