Last updated: 2026-05-23
Rhode Island Indoor Air Quality Guide
Rhode Island has the oldest housing stock by percentage of any state
Zone 1 — Highest potential (predicted average > 4 pCi/L)
Radon Levels in Rhode Island
Average Radon Level
4.8 pCi/L
EPA Zone
Zone 1
Rhode Island is largely Zone 1. The state's glacial geology produces elevated radon. Washington County shows the highest readings in the state.
⚠️ Testing strongly recommended
Rhode Island is Zone 1 — the highest risk category. Test every home. If levels are 4 pCi/L or above, install a mitigation system immediately.
Top Indoor Air Hazards in Rhode Island
Radon Gas
CRITICALRadon is the #2 cause of lung cancer after smoking. It seeps from soil into basements and crawl spaces. You cannot see, smell, or taste it. The only way to know is to test.
Lead Paint Dust
CRITICALLead paint was banned in 1978 but remains in millions of homes. Sanding, scraping, or peeling paint releases lead dust that causes irreversible brain damage in children. There is no safe level of lead exposure.
Mold Exposure
HIGH RISKMold releases spores that trigger allergies, asthma attacks, and respiratory infections. Black mold (Stachybotrys chartarum) produces mycotoxins linked to neurological symptoms.
Rhode Island Climate & Air Quality Factors
Densest small state with aging housing stock. Providence's triple-deckers have lead paint throughout. Coastal humidity creates mold. Old heating systems create CO risks.
Recommended Products for Rhode Island Homes
First Alert Radon Gas Test Kit
EPA-listed short-term radon test. Lab fees included. Results in days.
Airthings Corentium Home Radon Detector
Continuous digital radon monitoring. No lab fees. Real-time readings.
RadonAway RP140 Radon Mitigation Fan
Professional-grade radon mitigation fan. 4-inch. The core component of any radon reduction system. Cuts radon levels by up to 99%.
3M LeadCheck 8-Pack Lead Test Kit
Instant results. EPA-recognized. Test paint, dust, and soil.
Disclaimer
State-level radon data from EPA Zone Map. Individual home levels vary significantly. This guide is for educational purposes and not a substitute for professional environmental testing. Test your home regardless of zone designation.
Guidance sourced from EPA, CDC, and Health Canada publications.