2020 Yes https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7763282/ Hahn, Ellen North America Exposure Study Other High School (9-12) Radon Radon Citizen science Lung cancer Cancer prevention Youth-engaged Of the 18 homeowners who completed surveys, 15 had valid short-term radon test results ranging from < 14.8 Bq/m3 to 277.5 Bq/mq3. Two of the 15 tests were at or above the EPA action level; three tests exceeded the WHO action level of 100 Bq/m3. While we offered mitigation vouchers to the homeowners who tested at or above the EPA action level of 148 Bq/m3, neither were interested in having their homes mitigated.