California Waterways: "Forever Chemicals" Found

Millions of Californians face potential exposure to toxic "forever chemicals" known as PFAS, detected in agricultural areas. An analysis of surface water and sediment samples found bifenthrin, a PFAS pesticide linked to cancer, in nearly half of water samples and over half of sediment samples. These detections occurred between 2020 and 2024 in ten California counties.

Bernadette Del Chiaro of the Environmental Working Group stated the findings should "alarm every Californian" due to the widespread use of over 2.5 million pounds of PFAS pesticides on farmland annually. These chemicals are frequently found on produce, raising public health concerns about immunotoxicity and other risks, with research on long-term effects still limited.

In response to these findings, researchers are urging California to ban PFAS pesticides for agricultural uses. The state is considering Assembly Bill 1603, which aims to prohibit the use, sale, and manufacture of PFAS pesticides on crops by 2035. This potential legislation could significantly alter agricultural practices in the state.

The federal government has also taken steps to reduce PFAS exposure, including proposing drinking water standards in 2024 to protect communities. However, the EPA announced in May 2026 its intent to propose rescinding and restarting this regulation due to alleged procedural errors, potentially extending compliance deadlines for water companies to 2031.