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Researchers from the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) found large quantities of previously undetectable compounds from the family of chemicals known as PFAS in six watersheds on Cape Cod using a new method to quantify and identify PFAS compounds. Exposures to some PFAS, widely used for their ability to repel heat, water, and oil, are linked to a range of health risks including cancer, immune suppression, diabetes, and low infant birth weight.
The new testing method revealed large quantities of previously undetected PFAS from fire-retardant foams and other unknown sources. Total concentrations of PFAS present in these watersheds were above state maximum contaminant levels (MCLs) for drinking water safety.
Harvard researchers have discovered large quantities of previously undetected chemical compounds known as PFAS in six watersheds on Cape Cod. Chronic exposure to the so-called “forever chemicals” which can be found in water-resistant clothing, stain-resistant furniture, and nonstick cookware has been linked to cancer, diabetes, and low infant birth weight.
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March 5, 2021 Update: The authors have updated their funding statement to read: The authors acknowledge funding from the National Natural Science Foundation of China, Guangdong Province Science and Technology Planning Project of China and Shenzhen Science and Technology Program.
Fireworks are used in celebrations around the world, including Independence Day in the U.S., the Lantern Festival in China and the Diwali Festival in India. However, the popular pyrotechnic displays emit large amounts of pollutants into the atmosphere, sometimes causing severe air pollution. Now, researchers reporting in ACS
Environmental Science & Technology have estimated that, although so-called environmentally friendly fireworks emit 15-65% less particulate matter than traditional fireworks, they still significantly deteriorate air quality.