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Environmental Topics
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Learn how California’s climate is changing and how these changes are affecting the state
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CalEnviroScreen
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CalEcotox is a repository that provides data for California ecotoxicological risk assessments.
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Proposition 65
About Proposition 65
The Safe Drinking Water and Toxic Enforcement Act
The Proposition 65 List
The current Proposition 65 list is dated December 29, 2023
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Proposition 65
Chemicals Considered or Listed Under Proposition 65
Thorium Dioxide
Thorium Dioxide
More information about
Thorium Dioxide
