17%tests ≥ 4 pCi/L
60tests on record
1.6median pCi/L
Zone 3EPA zone (1993 prediction)

Test results in Henry County

ResultShareEPA guidance
Below 2 pCi/L55%Below EPA's levels
2 to 4 pCi/L28%Consider fixing
4 pCi/L or more17%EPA recommends fixing

What the data shows

Where Henry 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 Henry County compares

Henry County ranks 5 of 7 among its neighboursShare of tests at or above 4 pCi/L · Radon test results from laboratories, 2008–2017 · whisker: 95% range
Benton County33%Stewart County26%Calloway County, Kentucky22%Carroll County20%Henry County17%Weakley County13%Graves County, Kentucky8%Tennessee 33%
Data table

Same source as Henry County.

What it means for your home

About 1 in 6 results in Henry 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: 60. 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