24%tests ≥ 4 pCi/L
2,792tests on record
1.9median pCi/L
Zone 2EPA zone (1993 prediction)

Test results in Newport County

ResultShareEPA guidance
Below 2 pCi/L51%Below EPA's levels
2 to 4 pCi/L25%Consider fixing
4 pCi/L or more24%EPA recommends fixing

What the data shows

How Newport County compares

Newport County ranks 3 of 5 among its neighboursShare of tests at or above 4 pCi/L · Radon test results from laboratories, 2008–2017 · whisker: 95% range
Washington County39%Kent County26%Newport County24%Bristol County, Massachus…23%Bristol County15%Rhode Island 24%
Data table
AreaTests ≥ 4 pCi/LTests
Washington County39%7,903
Kent County26%7,657
Newport County24%2,792
Bristol County, Massachusetts23%13,358
Bristol County15%1,867
Rhode Island (5 counties)24%37,874

Same source as Newport County.

What it means for your home

About 1 in 4 results in Newport County were at or above 4 pCi/L, where the EPA recommends a fix. Only a test shows your own home's level.

Levels in pCi/L from the EPA. The WHO reference level is 100 Bq/m³, about 2.7 pCi/L.

Test your home

Start with a short-term test (2–90 days) and confirm a result of 4 pCi/L or more with a second test. EPA guide

Sponsored: we earn a commission on purchases through these links. We haven't tested Airthings monitors yet.

Prefer a digital monitor? See Airthings radon monitors, or enter code radonbycounty-10OFF at their discount store for 10% off.

Fixing high radon

No local job records yet. National range: $800–$2,500, average $1,200 (EPA, 2003). Cost guide →

About this data

Source: Radon test results from laboratories (CDC Environmental Public Health Tracking Network). Period: 2008–2017. Tests: 2,792. Read the methodology →

These are voluntary and real-estate tests, not a random sample of homes, so they describe tested homes rather than every home.

About this page

Published by Ray Roman, editor of Radon by County. Figures are loaded from the cited source and spot-checked against it. Editorial policy · About us