Cancer-Linked Chemicals Detected in 7.5 Million Californians’ Drinking Water

7.5 million Californians are drinking tap water containing cancer-causing chemicals and other toxins, according to a new report from the U.S. Environmental Protection Agency.

The agency’s Environmental Working Group discovered Perfluoroalkyl substances (PFAS) in 74 water systems between 2013 and 2019, with more than 40% containing levels that exceed EPA standards.

“PFAS chemicals are used to make products water and stain resistant, including carpets, clothing, furniture and cookware,” the Associated Press notes. “Studies have linked PFOS and PFOA to a variety of health problems, including cancer, immune system issues and liver and thyroid problems.”

The highest PFAS levels were detected in the communities of Corona, Camp Pendleton, Oroville, Rosemont, and parts of Sacramento.