There’s a new study out today with some important findings about the extent of contamination around the country related to C8 and similar chemicals. Here’s the conclusion, as summarized in a press release from Harvard University, whose researchers worked on the paper:
Levels of a widely used class of industrial chemicals linked with cancer and other health problems — polyfluoroalkyl and perfluoroalkyl substances (PFASs) — exceed federally recommended safety levels in public drinking-water supplies for 6 million people in the United States, according to a new study led by researchers from the Harvard T.H. Chan School of Public Health and the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS).
The researchers looked at concentrations of six types of PFASs in drinking-water supplies, using data from more than 36,000 water samples collected nationwide by the U.S. Environmental Protection Agency (EPA) from 2013 to 2015. They also looked at industrial sites that manufacture or use PFASs; at military fire-training sites and civilian airports where firefighting foam containing PFASs is used; and at wastewater-treatment plants. Discharges from these plants — which are unable to remove PFASs from wastewater by standard treatment methods — could contaminate groundwater. So could the sludge the plants generate, which is frequently used as fertilizer.
The study found that PFASs were detectable at the minimum reporting levels required by the EPA in 194 out of 4,864 water supplies in 33 states across the United States. Drinking water from 13 states accounted for 75 percent of the detections: California, New Jersey, North Carolina, Alabama, Florida, Pennsylvania, Ohio, New York, Georgia, Minnesota, Arizona, Massachusetts, and Illinois, in order of frequency of detection.
You can read the full paper here.
Also out today in the journal Environmental Health Perspectives is this paper, which again points to potential links between exposure to these chemicals and effects on human immune systems.