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Estimated share of tap water samples in the United States contaminated by at least one type of PFAS as of 2021

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Sources

Release date

July 2023

Region

United States

Survey time period

2016 to 2021

Number of respondents

716 samples*

Supplementary notes

*Tap water from 716 locations (269 private-wells; 447 public supply) across the U.S. was collected during 2016 and 2021 including three locations where temporal sampling was conducted.

Citation formats

Drinking water systems with PFAS detections 2016-2021

Published by ÌÇÐÄÆƽâ°æ Research Department, Jul 20, 2023
It is estimated that almost half of all U.S. drinking water could be contaminated by at least one per- and polyfluoroalkyl substances (PFAS). At least one PFAS could be detected in about ** percent of tap water from unregulated private-wells. Approximately ** million Americans rely on private-wells for drinking water. Also known as "forever chemicals', PFAS have been linked to significant adverse health impacts. Some PFAS can take 1,000 years to degrade.
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Environmental pollution in the U.S.Greenhouse gas emissions in the U.S.Environmental pollution worldwideAir pollution in the U.S.Air pollution in Europe
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