National Radon Zones
- City-Data (more interactive than USEPA)
Alabama Zip Codes by Zip Code
- WIth detail records by county and zip codes
Califormia Radon Levels Sorted by ZIp Codes
- Database of 48,278 radon tests
Delaware Radon Levels by Zip Code
- Data collected from 1993 to 2011
Florida Radon Levels
- Searchable by zip code
Florida Residential Building Radon Protection Map
- Detailed construction info
Ohio Radon Levels by Zip Code
- 227,407 data points for 1494 zip codes
Oregon Radon Test Results by Zip Code
- Long term and short term results by zip
Nevada Radon Test Results by Zip Code
- Various years as well
Pennsylvania Radon Test Results by Zip Code
- Searchable by zip code
South Carolina Radon Test Results by Zip Code
- PDF provided by SCDHEC
Environmental 411
{Solutions, Resources, and Information for Environmental Consultants)
Home Page
Environmental Links
Radon
About Us
Contact Us