California Department of Public Health logo: three likenesses of people colored blue, green, and orange  

Welcome to the
Environmental Health Investigations Branch

EHIB works to optimize the health of the people in California by studying how the environment affects health and by educating and informing the public. The environment is the world around us:  it is where we live, work and play. We come into contact with the environment through the air we breathe, the food we eat, and the water we drink. Visit our "Learn" pages to understand more about environmental health.