By CASSIDY MORRISON SENIOR HEALTH REPORTER
FOR DAILYMAIL.COM
UPDATED: 18:18 EDT, 6 July 2023
🚈 More About This Source Here!!
Concentrations are measured in parts per trillion (PPT)
● Brunswick County, N.C. at 185.9ppt
● Quad Cities, Iowa at 109.8ppt
● Miami, Fla. at 56.7ppt
● Bergen County, N.J. at 51.4ppt
● Wilmington, N.C. at 50.5ppt
● Philadelphia, Pa. at 46.3ppt
● Louisville, Ky. at 45.2ppt
● New Orleans, La. at 41.8ppt
● Charleston, S.C. at 33.3ppt
● Decatur, Ala. at 24.1ppt
Information courtesy of a separate report by the Environmental Working Group
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