PA Radon Mapper TN
![Map showing colored areas and colored circular symbols](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/media/images/RadonMapperTN.png?itok=kUluhg29)
Detailed Description
Thumbnail screenshot of Web Tool Mapping Radon in Pennsylvania's Groundwater. Colored areas are principal aquifers and colored dots represent radon concentrations in groundwater samples from wells.
Sources/Usage
Public Domain.