Radon
Radon is a radioactive gas that occurs naturally in soil and rock. It can enter drinking water through groundwater and poses a lung cancer risk when released into the air.
Radon, a colorless and odorless radioactive gas, forms naturally as uranium in soil and rocks decays. It can seep into groundwater through rock fissures, particularly affecting well water users. When contaminated water is used, radon can be released into the air, where it poses the greatest health risk. Radon levels in water are measured in picocuries per liter (pCi/L). While concerning, mitigation methods exist for homes with elevated radon levels in their water supply.
- People affected
- 6.7M
- Utilities with this contaminant
- 227
- States with this contaminant
- 22
Utilities with the highest levels of this contaminant
| Utility | Service Areas | Level | Population Served | |
|---|---|---|---|---|
PO Portland Water District-Greater | Cumberland County, ME | 2338.000 pci/l | 142,000 | View |
CI City Of Westminster | Carroll County, MD | 2322.500 pci/l | 35,256 | View |
WA Washington Township Mua | Washington Twp.-0818, NJ | 2320.000 pci/l | 48,000 | View |
CT Ctwc - Shoreline Region-Guilford System | New Haven County, CT | 1873.000 pci/l | 33,875 | View |
UN University Of Connecticut - Main Campus | Mansfield, CT | 1713.000 pci/l | 27,199 | View |
MA Manchester Water Department | Hartford County, CT | 1713.000 pci/l | 51,198 | View |
CT Ctwc - Northern Reg-Western System | Hartford County, CT | 1713.000 pci/l | 98,690 | View |
SO South Tahoe Pud - Main | El Dorado County, CA | 1455.000 pci/l | 109,414 | View |
WE Westerly Water Department | Westerly, RI | 1167.000 pci/l | 35,298 | View |
CT Ctwc - Unionville System | Hartford County, CT | 1146.000 pci/l | 14,693 | View |