46%tests ≥ 4 pCi/L
189tests on record
3.5median pCi/L
Zone 1EPA zone (1993 prediction)

Test results in Monroe County

ResultShareEPA guidance
Below 2 pCi/L32%Below EPA's levels
2 to 4 pCi/L23%Consider fixing
4 pCi/L or more46%EPA recommends fixing

What the data shows

Where Monroe County sits among Tennessee's 95 counties with dataEach dot is a county's share of tests at or above 4 pCi/L · Radon test results from laboratories, 2008–2017
0%20%40%60%

How Monroe County compares

Monroe County ranks 2 of 7 among its neighboursShare of tests at or above 4 pCi/L · Radon test results from laboratories, 2008–2017 · whisker: 95% range
Loudon County54%Monroe County46%Cherokee County, North Ca…43%Blount County43%Graham County, North Caro…42%McMinn County34%Polk County28%Tennessee 33%
Data table
AreaTests ≥ 4 pCi/LTests
Loudon County54%859
Monroe County46%189
Cherokee County, North Carolina43%1,045
Blount County43%745
Graham County, North Carolina42%69
McMinn County34%106
Polk County28%43
Tennessee (95 counties)33%31,066

Same source as Monroe County.

What it means for your home

About 1 in 2 results in Monroe 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.

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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: 189. 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