23%tests ≥ 4 pCi/L
165tests on record
1.9median pCi/L
Zone 3EPA zone (1993 prediction)

Test results in Hanover County

ResultShareEPA guidance
Below 2 pCi/L50%Below EPA's levels
2 to 4 pCi/L27%Consider fixing
4 pCi/L or more23%EPA recommends fixing

What the data shows

Where Hanover County sits among Virginia's 131 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%80%

How Hanover County compares

Hanover County ranks 7 of 8 among its neighboursShare of tests at or above 4 pCi/L · Radon test results from laboratories, 2008–2017 · whisker: 95% range
Louisa County38%Spotsylvania County34%Caroline County33%New Kent County31%Goochland County31%Henrico County27%Hanover County23%King William County14%Virginia 30%
Data table
AreaTests ≥ 4 pCi/LTests
Louisa County38%289
Spotsylvania County34%1,872
Caroline County33%199
New Kent County31%13
Goochland County31%114
Henrico County27%607
Hanover County23%165
King William County14%7
Virginia (131 counties)30%53,199

Same source as Hanover County.

What it means for your home

About 1 in 4 results in Hanover 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: 165. 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