The podcast discusses the new EPA rule limiting 'forever chemicals' in tap water, highlighting the health risks associated with PFAS chemicals. Topics include the implications of PFAS in drinking water, the origins of these chemicals, and the evolving stance of the EPA on regulating PFAS. The episode also explores the costs for water companies and the need for broader regulations to address PFAS exposure.
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Quick takeaways
PFAS, also known as forever chemicals, pose serious health risks including cancer and fertility issues.
The new EPA rule sets limits on PFAS in drinking water to protect human health and regulate contaminated water systems.
Deep dives
Introduction of New EPA Rule on PFAS in Drinking Water
The Environmental Protection Agency has introduced a new rule limiting the amount of PFAS, also known as forever chemicals, in drinking water. These human-made chemicals have strong carbon-fluorine bonds and are commonly used in products like non-stick pans. PFAS chemicals do not break down easily and have been linked to various health issues, including certain cancers, fertility problems, high cholesterol, and liver damage.
Sources and Spread of PFAS in Drinking Water
PFAS chemicals originate from products such as Teflon and Scotchgard, dating back to the 1940s. They are found in a variety of items, from floss to clothing, and have even entered the bodies of humans and animals, accumulating over time. Industrial pollution, especially near military bases and firefighting foam usage areas, contributes significantly to PFAS contamination in drinking water, affecting immune and developmental health.
Implications and Response to EPA's PFAS Regulation
The EPA's new rule imposes limits on six PFAS chemicals in drinking water, with further monitoring and treatment requirements for affected water systems. The cost estimates for compliance are high, and funding sources include grants from the EPA and contributions from companies responsible for the chemicals. While the regulation is a vital step towards safeguarding public health, ongoing research and efforts are necessary to fully understand and address the pervasive impact of PFAS on human and ecological well-being.
Wednesday the Environmental Protection Agency announced new drinking water standards to limit people's exposure to some PFAS chemicals. For decades, PFAS have been used to waterproof and stain-proof a variety of consumer products. These "forever chemicals" in a host of products — everything from raincoats and the Teflon of nonstick pans to makeup to furniture and firefighting foam. Because PFAS take a very long time to break down, they can accumulate in humans and the environment. Now, a growing body of research is linking them to human health problems like serious illness, some cancers, lower fertility and liver damage. Science correspondent Pien Huang joins the show today to talk through this new EPA rule — what the threshold for safe levels of PFAS in tap water is, why the rule is happening now and how the federal standards will be implemented.
Read more of Pien's reporting on the EPA's first ever rule on PFAS in drinking water.
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