California Surface Water Tests Find Half of Samples Had 'Forever Chemicals'
Summary
A new analysis by the Environmental Working Group found that half of California's surface water samples contained harmful chemicals called PFAS, used in pesticides. These chemicals do not break down naturally and can contaminate drinking water, posing health risks to the public.Key Facts
- PFAS are "forever chemicals" used in pesticides and many consumer products like nonstick cookware and waterproof clothing.
- The Environmental Working Group reviewed 4,158 surface water samples from 2020 to 2023 in 11 California counties.
- Half of the tested water samples contained PFAS pesticides.
- San Luis Obispo and Monterey counties had the highest detection rates of PFAS pesticides.
- PFAS chemicals can cause health problems including cancer, thyroid and liver diseases, and weak immunity.
- PFAS do not break down naturally and remain in the environment for a long time.
- California uses 2.5 million pounds of PFAS annually on farmland, leading to widespread contamination risks.
- Traditional water filters cannot remove PFAS effectively; advanced treatments are needed but are costly.
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