Florida Health Radon Protection Maps describe the areas of the state by county where added radon resistant measures beyond the current energy efficient building code are needed to prevent indoor radon problems. The radon resistant measures are voluntary standards. The maps are shown for only those counties that have areas where added radon resistant features are recommended, so not all counties are mapped. Maps indicate zones where active or passive control measures are recommended and zones where no measures are generally needed.
The radon protection maps are shown by county for large buildings and for single family homes and duplexes. The maps do not necessarily indicate which buildings may have elevated radon levels or the potential for such. Only testing can confirm radon levels, Florida Health notes. The maps represent the radon potential for buildings constructed on native soil with minimal disturbance of the ground. Radon source potential is defined as the average rate at which radon would enter a reference house that is modeled on specific soil profiles. During construction, Florida Health notes that the disruption of soils or addition of soils to the site could make significant differences.
The color-coded maps show:
• Red areas are zones where active radon control is recommended (ARC).
• Yellow areas are zones where passive radon control is recommended (PRC).
• Green areas are zones where radon control is generally unnecessary (RCU).
To see the maps, visit https://www.floridahealth.gov/environmental-health/radon/maps/protection-maps.html
United States