Radon Data


Test evaluate the health risk and patterns of radon exposure in Rhode Island

Key Information

Radon levels in homes test.

Rhode Island Numbers

Rhode Island Homes ≥ 4.0 pCi/L Radon 2021

map of radon by municipality
  • One in four homes in Rhode Island contain radon at or above the Environmental Protection Agency action level of 4.0 pC/L. This is significantly higher than the national average of one in fifteen homes.
  • In Exeter and Richmond, more than 50% of tested homes exceeded the Environmental Protection Agency’s action level.


Rhode Island Department of Health Radon Database 2021