Environmental Tobacco Smoke Identified as a Toxic Air Contaminant Back To All Programs Environmental Tobacco Smoke Identified as a Toxic Air ContaminantAboutResources California Tobacco Laws that Reduce ETS ExposurePublicationsWorkshops & Meetings Subscribe Primary Contact Email helpline@arb.ca.gov Phone (800) 242-4450 Categories Division Transportation and Toxics Division Resources Fact Sheet Reducing Your Exposure to Indoor Air Pollution