The finding is based on an analysis of hundreds of fish caught by the U.S. EPA. Though it has concluded some of the chemicals are harmful at any level, the agency hasn’t drawn attention to its fish sampling or warned Americans they could be in danger.
. “We don’t want this problem to get any worse, especially knowing how long it’s going to take for it to get better.”
A single serving of freshwater fish during a year is equivalent to drinking water laden with 48 parts per trillion of PFOS for a month, Andrews and his colleagues concluded in their peer-reviewed study, published Tuesday in the journalTo put that number into context, the nationwide median of PFOS in drinking water is estimated to be less than 5 ppt. The highest concentration detected in Chicago drinking water so far is 2.8 ppt.
In June, the EPA announced there is effectively no safe exposure to PFOS and a related chemical, PFOA.More than 8 million Illinoisans get drinking water from a utility where forever chemicals have been detected, Tribune investigation findsExposure from eating fish is of particular concern for Native Americans, certain immigrant communities and low-income Americans who depend on lakes and rivers for a significant portion of their diet, Andrews noted, citing other studies.than seafood.
The highest level of PFOS detected in Great Lakes fish — 64,400 parts per trillion — came from white perch caught in Lake Erie near Monroe, Michigan, a Chicago Tribune review ofYellow perch in Lake Michigan near Holland, Michigan, and Whiting were tainted with 22,900 ppt and 12,500 ppt, respectively. The level in walleye caught off the Door County peninsula in Wisconsin: 11,500 ppt.Yellow perch and other fish caught by a commercial fishermen in Lake Erie near Sandusky, Ohio, in 2019.
EPA sampling in the Great Lakes during 2013 through 2015 did not include fish from Illinois waters. But in 2010 the agency found 19,000 ppt of PFOS in brown trout
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