26%tests ≥ 4 pCi/L
375tests on record
2.3median pCi/L
Zone 3EPA zone (1993 prediction)

Test results in Fredericksburg city

ResultShareEPA guidance
Below 2 pCi/L45%Below EPA's levels
2 to 4 pCi/L29%Consider fixing
4 pCi/L or more26%EPA recommends fixing

What the data shows

Where Fredericksburg city 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 Fredericksburg city compares

Fredericksburg city has the lowest share of high results among its neighboursShare of tests at or above 4 pCi/L · Radon test results from laboratories, 2008–2017 · whisker: 95% range
Spotsylvania County34%Stafford County31%Fredericksburg city26%Virginia 30%
Data table
AreaTests ≥ 4 pCi/LTests
Spotsylvania County34%1,872
Stafford County31%2,758
Fredericksburg city26%375
Virginia (131 counties)30%53,199

Same source as Fredericksburg city.

What it means for your home

About 1 in 4 results in Fredericksburg city 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: 375. 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