Skip Navigation LinksHome

Environmental Health investigations branch

banner

ā€‹ā€‹ā€‹ā€‹Exposure Investigations Section


Welcome to our Exposure Investigations Section. 

  • We investigate exposures to toxic substances in the environment that occur through air, water, soil, food, or consumer products.
  • We evaluate how such exposures can affect people's health.
  • We identify strategies to reduce harmful exposures.
  • We assist counties with preparing for and responding to environmental health emergencies.ā€‹

ā€‹ā€‹ā€‹Our staff includes toxicologists, epidemiologists, health educators, and environmental scientists.ā€‹

ā€‹Learn more about our work below. ā€‹ā€‹ā€‹ā€‹ā€‹ā€‹ā€‹ā€‹ā€‹


Updaā€‹ā€‹ā€‹te  ā€‹Superfund and Hazardous Wā€‹aste Sites in California

CDPH no longer conducts Public Health Assessments (PHAs) and Health Consultations (HCs) of hazardous waste sites. Please see our Superfund and hazardous waste sites webpageā€‹ for more information. ā€‹

Whatā€™s New

  • Health alert on hemorrhoid ointment from Vietnamā€‹ā€‹:  In March 2024, a woman in Sacramento developed severe lead poisoning and died after using a hemorrhoid ointment from Vietnam called, Cao BĆ“i TrÄ© CĆ¢y Thįŗ§u Dįŗ§u. Testing of the hemorrhoid ointment found a highly dangerous amount of lead. Lead is toxic. Exposure to any amount of lead can harm health  


  • ā€‹ā€‹ā€‹Factsheet on Fiberglass and Mattresses in Englishā€‹ and Spanishā€‹. This factsheet is intended to raise awareness about the risks associated with fiberglass in mattresses. Numerous individuals have filed complaints to the Consumer Product Safety Commission about fiberglass coming out of their mattresses and harming their health. In 2022, CDPH published a study on the topic. In October 2023, Governor Newsom signed into law a state-wide ban on the sale of mattresses and upholstered furniture that contain fiberglass. The ban will begin on January 1, 2027.


  • ā€‹Factsheet on Cure-in-Place Piping (PDF)ā€‹ - This factsheet is intended to raise awareness of the risks to the public associated with Cure-in-Place Piping (CIPP). CIPP is a widely used method to repair sewer and water pipelines because it does not require digging trenches or replacing pipes. CIPP can result in harmful chemical releases. Toxic chemicals can travel during and after CIPP installation into the indoor air of buildings through windows, doors, cracks in foundations, plumbing and other means, resulting in potentially harmful exposures to occupants. ā€‹


  • ā€‹Factsheet on Fumiā€‹gation Tenting (PDF)ā€‹ā€‹ ā€“ This factsheet is intended to raise awareness of the risks to home occupants associated with fumigation tenting. This ā€œwhole home fumigationā€ method uses toxic gases to control termites, bedbugs and other structure-infesting pests. After fumigation, the pest control operator is required to take measurements in the home to check that the toxic chemicals are below the required levels before allowing people to re-enter their homes. However, people can be exposed to these harmful chemicals even after the applicator has certified a building to be safe to reenter. ā€‹

ā€‹ā€‹

Page Last Updated :