by Margaret Henderson
The Idaho Department of Health and Welfare website features an interactive map of radon levels by zip code. The 2016 Radon Map’s data table provides the number of tests and percent of test in excess of 3.9 pCi/L. The EPA recommended action level is 4.0 pCi/L. The color-coded map provides the percent of tests in excess of 3.9 pCi/L in these categories:
• 54-79%
• 34-54%
• 18-34%
• 0-18%
• other
The base map was created using the USGS (U.S. Geologic Service) topographic map. When zoomed to the 2 mile scale, roads and other features are visible along with zip code areas. A FAQ menu provides details on radon.
The mapping application allows residents to examine test results in their area and the guidance provides details for making decisions on radon testing and mitigation.
United States