HARRISON COUNTY, Ind. — In 2018, we sent open records requests to districts in our area. After we started asking questions the district started testing.

In 2019, we checked with the district again to see if it is doing anything differently. They told us they have completed all testing in all their schools but they have not done any additional testing this year.

Here is a summary of what we found:

  • Tests conducted during September 2018. A total of five tests for radon ranged from 2.8 - 0.7 pCi/L.
  • It is unclear from the records provided how many schools were tested. We are waiting for clarification.



Indiana schools are not required to test for radon but being exposed to the average levels in Harrison County (4.0 pCi/L) is equivalent to smoking a half a pack of cigarettes a day, according to the EPA. 

Approximately 21,000 Americans die annually from radon-induced lung cancer, including people who have quit smoking or never smoked.

The EPA recommended action level is at 4 pCi/L, while the World Health Organization recommends action at 2.7 pCi/L. Both organizations are clear, no level of radon exposure is safe, especially long-term. 

Changes in the building and environment could cause changes in radon exposure levels, therefore the EPA recommends retesting every building at least every other year to make sure levels do not reach dangerous levels.

The only way to know if levels of radon gas are dangerous is to test and retest.


Indiana Radon Fact Sheet

This is part of a WHAS11 investigation into radon exposure in schools. Read the full 2018 report.

Watch the follow-up 2019 report.


Contact FOCUS reporter John Charlton atjcharlton@whas11.com. Follow him onTwitter (@JCharltonNews) andFacebook.

Contact FOCUS producer Andrea Ash at aash@whas11.com. Follow her on Twitter (@AndreaAshNews) and Facebook.

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