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Environmental Topics
Air
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Climate Change
Learn how California’s climate is changing and how these changes are affecting the state
Fish
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OEHHA’s role in protecting workers and the public from pesticides
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Water
Risk assessment and hazard evaluation activities relating to chemical contaminants in drinking water
CalEnviroScreen
Explore CalEnviroScreen, a mapping tool showing communities affected by pollution
CalEcotox Database
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
Metronidazole
Metronidazole
More information about
Metronidazole
