For more than half a century along the Ohio River, the chemical company DuPont provided jobs for thousands of people. One chemical they produced is PFOA, commonly known as C8. It was a remarkably useful compound, used in “Teflon” non-stick cookware, stain-resistant fabrics, and even in some food wrappers.
Over time, researchers have found that C8 is also toxic. DuPont and other companies phased out U.S. production a few years ago. Now it’s made in China.
But because the chemical can persist in water, communities along the Ohio River — and around the U.S. — are still grappling with the environmental fallout of contamination from C8 and similar chemicals. The ReSource generated a map using water testing data available from the U.S. EPA. It shows 12 water systems in 10 counties in Ohio, Kentucky, and West Virginia where these chemicals were detected in the water.
The Environmental Protection Agency issued a health advisory this year for C8 levels in drinking water, and many of the water systems that detected C8 and related chemicals found them at levels lower than the EPA advisory. However, a growing body of science indicates that the EPA advisory level is not sufficiently protective of human health, and many researchers recommend far more restrictive thresholds for exposure.