27%tests ≥ 4 pCi/L
33tests on record
1.8median pCi/L
Zone 1EPA zone (1993 prediction)

Test results in Trousdale County

ResultShareEPA guidance
Below 2 pCi/L55%Below EPA's levels
2 to 4 pCi/L18%Consider fixing
4 pCi/L or more27%EPA recommends fixing

What the data shows

Where Trousdale 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 Trousdale County compares

Trousdale County ranks 2 of 5 among its neighboursShare of tests at or above 4 pCi/L · Radon test results from laboratories, 2008–2017 · whisker: 95% range
Smith County45%Trousdale County27%Sumner County26%Wilson County20%Macon County19%Tennessee 33%
Data table
AreaTests ≥ 4 pCi/LTests
Smith County45%55
Trousdale County27%33
Sumner County26%1,311
Wilson County20%959
Macon County19%67
Tennessee (95 counties)33%31,066

Same source as Trousdale County.

What it means for your home

About 1 in 4 results in Trousdale 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: 33. 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