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Radon Levels in Nance County, Nebraska

Zone 1Highest predicted potential448 square miles · 5 bordering counties

What this means for you

  • Your area: EPA rates Nance County Zone 1, the highest of its three radon zones. That is a prediction for the whole county, and homes with elevated levels occur in all three zones.
  • Local tests: Of 8 buildings with radon tests reported to CDC for Nance County (2023), 100.0% were at or above 4 pCi/L, EPA's action level.
  • Your home: The only way to know your home’s level is to test it.

pCi/L (picocuries per liter) is the unit radon is measured in. EPA recommends fixing a home at 4 pCi/L or above, its action level.

In 2023, 100.0% of the radon tests reported to CDC for Nance County, Nebraska came back at or above the EPA action level of 4 pCi/L, and the median result was 12.3 pCi/L. EPA's Map of Radon Zones places the county in Zone 1, highest predicted potential. Radon levels vary from home to home, so only a test measures the level in yours.

Predicted: EPA radon zone

EPA Zone 1: highest predicted potential

EPA predicts an average indoor of greater than 4 pCi/L (greater than 150 Bq/m³) across the county as a whole.

This is a county-level geologic prediction. It is not a measurement of any address, and houses with elevated radon are found in all three zones.

USGS geologic potential: Low across 64% of the county's land area

Predicted: EPA Map of Radon Zones

Measured: tests reported to CDC

Radon tests reported for Nance County, 2023

Buildings tested
8
At or above 4 pCi/L
100.0%
Median result
12.3 pCi/L

Distribution of tested buildings, not this house. People testing before a sale, or because they suspect a problem, are over-represented in any reported testing data.

Measured: CDC tracking data. Figure above: 2023. Measured data period: 2005 to 2023 (every CDC figure on file).

Nance County, In figures

Nance County in figures

What the published data says about Nance County, in words. A zone and a share of tests describe an area, never the level in any one home.

    • Predicted

      Predicted

      EPA places Nance County in Zone 1, highest predicted potential, as it does 52 other counties of Nebraska's 93.

      Of the 5 bordering counties, EPA places Boone County, Greeley County and Platte County in Zone 1 and Howard County and Merrick County in Zone 2.

  • Reported tests

    Measured

    CDC has annual figures for Nance County for 10 years, 2014 to 2023. In 2023, 100.0% of reported tests were at or above 4 pCi/L.

    Across those years the share ranged from 50.0% (2020) to 100.0% (2023). Few tests in a year can move it a long way.

  • Local record

    Nebraska's radon program is the Office of Environmental Health Hazards & Indoor Air, run by Nebraska Department of Health and Human Services; its contacts are under Local resources.

    The county's largest incorporated places are Fullerton, Genoa and Belgrade; the figures here cover them as part of the county.

Nance County, Reported testing

Reported testing over time

Measured
Reported radon test results by year, Nance County, pCi/LLogarithmic scale: each step up the axis multiplies the level, so the median and the single highest result can share one chart. The darker gridline is EPA's action level, 4 pCi/L.
Median reported resultHighest reported result
Reported radon test results by year, Nance County, pCi/L: data table
YearMedian reported resultHighest reported resultShare of tests at or above 4 pCi/L
20146.3 pCi/L39.5 pCi/L65.0%
20154.0 pCi/L12.9 pCi/L58.3%
20164.6 pCi/L17.5 pCi/L56.4%
20174.5 pCi/L24.1 pCi/L56.9%
20183.8 pCi/L11.7 pCi/L50.0%
20194.5 pCi/L18.3 pCi/L50.0%
20204.2 pCi/L22.2 pCi/L50.0%
20215.1 pCi/L16.1 pCi/L52.9%
20228.3 pCi/L15.7 pCi/L75.0%
202312.3 pCi/L20.1 pCi/L100.0%

What these figures count

Every percentage here is a share of radon tests reported to CDC for Nance County in 2023. It is not a share of homes in Nance County, and it is not a random sample: it counts only the tests people chose to run and that were reported.

The shares and the median are calculated from pre-mitigation tests. CDC also reports the number of buildings tested (8), a different count, so the two totals are not interchangeable.

Nance County, Comparison

How Nance County compares

Measured

Nance County's own published CDC figures beside those of the counties that border it, for the same period.

Share of reported tests at or above 4 pCi/L

Measured

2023, highest first. Each county’s own published CDC figure.

  1. Nance CountyThis pageTest count not published100.0%
  2. Boone CountyNE10 tests80.0%
  3. Greeley CountyNETest count not published50.0%
  4. Howard CountyNE9 tests44.4%
  5. Platte CountyNE212 tests26.4%
  6. Merrick CountyNE12 tests16.7%

Median reported result

Measured

2023, highest first. Each county’s own published CDC figure.

  1. Nance CountyThis pageTest count not published12.3 pCi/L
  2. Boone CountyNE10 tests7.9 pCi/L
  3. Greeley CountyNETest count not published4.2 pCi/L
  4. Howard CountyNE9 tests3.3 pCi/L
  5. Merrick CountyNE12 tests1.9 pCi/L
  6. Platte CountyNE212 tests1.6 pCi/L

Each figure is that county’s own published CDC figure for 2023, counting radon tests reported to CDC, not homes. Nance County is this page. Nothing is averaged or combined across counties. The test count beside each county is CDC’s published number of pre-mitigation tests behind its figures. Figures from few tests can swing widely from year to year. Every Nebraska county’s own figure is in the Nebraska county table.

CDC publishes this figure only for counties here, so there is no state or national number to compare Nance County, Nebraska with.

Nance County, Bordering counties

Counties bordering Nance County

Calculated by Radon411

5 counties share a boundary with Nance County, computed from Census county geometry. Radon potential follows geology rather than county lines, so a bordering county’s report can be worth reading alongside this one.

Nance County, Local resources

Local resources in Nebraska

Who to ask in Nebraska: the state's radon program, test kits and professionals.

Office of Environmental Health Hazards & Indoor Air

Nebraska Department of Health and Human Services

Nebraska’s radon program answers questions about testing, mitigation and the rules where you live.

Phone
(402) 471-1005
Licensing of radon professionals
If radon testing is done in schools, offices, or other places of work, it must be done by a licensed radon measurement business.
Visit the program's page(opens in a new tab)

Test kits

The program says: Some local programs distribute radon kits for free or a reduced cost.

Radon professionals

12 professionals are listed in Nebraska.

Professionals in Nebraska

Nance County, Cities and towns

Cities and towns in Nance County

The radon figures on this page are for Nance County as a whole. They do not differ by city or town.

  • Fullerton
  • Genoa
  • Belgrade

3 incorporated places, as listed in the U.S. Census Bureau’s 2020 place reference files.

Nance County, Questions

Questions about radon in Nance County

Common questions8 questions, answered from the figures above

How do I get a radon test in Nance County?

EPA says you can test your home yourself or hire a qualified radon test company, and that either approach takes only a small amount of time and effort. No certified tester listed on Radon411 names Nance County as a service area yet. The Nebraska radon program is the place to ask about certified testers and any test kit offer it runs.

How to test a homeTest kits comparedFree and low-cost kits by stateNebraska radon program

Are radon levels high in Nance County?

In 2023, 100.0% of the radon tests reported to CDC for Nance County, Nebraska were at or above 4 pCi/L, and the median reported pre-mitigation result was 12.3 pCi/L. That is a share of reported tests, not of homes. EPA places Nance County in Zone 1, highest predicted potential, a predicted average indoor screening level greater than 4 pCi/L. Homes with elevated levels occur in all three zones, so the figures describe the area, not your house. Testing is the only way to know the radon level in a specific building.

What a radon level meansRadon in Nebraska

Who does radon mitigation in Nance County?

No listed mitigator names Nance County as a service area yet; the Nebraska directory lists 12 companies. EPA recommends having a qualified contractor fix a home with a radon problem, because lowering high radon levels takes technical knowledge and special skills, and some states require the work to be done by a licensed or certified professional. Your state radon program is the place to check whether Nebraska requires one.

How radon mitigation worksWhat mitigation costsMitigators in Nebraska

What EPA radon zone is Nance County in?

EPA places Nance County, Nebraska in Zone 1, which EPA describes as highest predicted potential for the area. A zone is a prediction for the whole county and never determines whether a particular home should be tested. EPA recommends testing every home regardless of zone.

Should I test my home in Nance County?

Yes. Testing is the only way to know the radon level in a specific building. EPA recommends fixing a home when the radon level is 4 pCi/L or higher. EPA recommends considering a fix when the level is between 2 and 4 pCi/L. How to test a home.

When is the best time of year to test?

EPA says short-term tests stay in the home from 2 to 90 days and that all radon tests should run a minimum of 48 hours; long-term tests stay more than 90 days. EPA's guides do not name a best season: they say radon levels tend to vary from day to day and season to season, so a long-term test is more likely than a short-term test to tell you the year-round average.

What does it cost to test?

EPA's Citizen's Guide calls testing easy and inexpensive, and EPA's Home Buyer's and Seller's Guide says passive short-term and long-term devices are generally inexpensive, while active devices may cost more. No national average price is published for this, so Radon411 does not give one. What testing costs.

Which counties border Nance County?

Nance County borders 5 counties, derived from Census county geometry. Radon potential follows geology rather than county lines, so a bordering county's report can be relevant.

What these figures mean if you own, buy, sell or rent

The reported-test figures on this page describe Nance County, Nebraska in 2023. They describe tests other people carried out in other buildings, and none of them measures yours.

  • If you own your home

    Test the lowest lived-in level; a short-term kit screens in days, a long-term kit reflects the year.

    How to test a home
  • If you are buying

    Ask for past results and any system's post-mitigation test, and test during the sale.

    Buying a house: radon guide
  • If you are selling

    Testing before you list puts the timing in your hands; disclosure rules differ by state.

    Selling a house: radon guide
  • If you rent, or rent out a home

    A tenant can test; a fix is the owner's to make, and duties differ by state.

    Radon in rental homes

How long a test has to run, under what conditions, and what EPA says a result means: the testing standard, in full.

Nance County, Products

Testing and mitigation products

Whatever the figures for Nance County show, only a test tells you about one home.

Nance County / Next steps

What to do next

Informational. Follow EPA guidance. EPA says all radon tests should be taken for a minimum of 48 hours, with windows and doors closed from 12 hours before a short-term test.