Locations and reports
Radon in Manchester, New Hampshire
EPA puts Hillsborough County, where Manchester is, in Zone 2, its middle radon zone. Homes with elevated levels occur in all three zones, so only a test measures yours.
Data checked By Radon411Methodology
- Predicted
- Zone 2Moderate predicted potential
- Measured
41.5% of 610 tests reported to CDC for Hillsborough County (2021) were at or above 4 pCi/L- Your home
- Test to knowNo area figure here is a reading of your home.
The data
Manchester, What is published
What is published for Manchester
Radon data is published by county, not by city
Radon data is published by county, not by city. EPA assigns radon zones to counties, and CDC publishes radon test figures by county. Neither publishes a figure for Manchester, so every radon figure on this page belongs to a county and is labelled with it. Only a test tells you about one home.
Hillsborough County has an EPA zone and its own CDC test figures, shown below. About 116,818 people live in Manchester.
Manchester, Counties
The county Manchester lies in
MeasuredEach county's own EPA zone and its own published CDC figures for 2021, the newest period any of them has. A county without a figure for that period is shown without one, never with a figure from another year.
Hillsborough CountyZone 2Moderate predicted potential
- 41.5%
- Reported tests at or above 4 pCi/L, 2021
- 3.2 pCi/L
- Median reported result
- 610 tests
- Tests reported to CDC
- 4
- Annual years on file
The median reported pre-mitigation result for 2021 was 3.2 pCi/L in Hillsborough County.
CDC counts radon tests that were reported to it, not homes, and figures from few tests can swing widely from year to year. Each county’s report has its full history.
Predicted: EPA Map of Radon Zones, by county. Measured: CDC tracking data, by county, 2021.
Radon Action Brief
National Radon Action MonthPre-sale
The radon brief for Manchester, in one dated file.
- Your area's radon record, explained. EPA's zone and any CDC tests.
- Your plan to test this week. Which test, where it goes, how long.
- Fix costs and pros near you. Costs, EPA's checklist, listed pros.
Save 64%Sale price: $8.99Price after the sale: $25Ends Jan 31Then $25Sale ends January 31, then $25
Local help
Manchester, Local resources
Local resources for Manchester
Who to ask in New Hampshire: its radon program, test kits and professionals.
- New Hampshire Radon ProgramNew Hampshire Department of Health and Human ServicesNew Hampshire’s radon program answers questions about testing, mitigation and the rules where you live.Visit the program’s page(opens in a new tab)
- Free and low-cost kitsThe program says:
The NH Radon Program provides free radon test kits to NH residents.
- Compare kits
- Professionals in New HampshireRadon testers and mitigators in New Hampshire, each with how its listing was checked.
What New Hampshire's program says
- Licensing of radon professionals
There is no requirement in New Hampshire for those professionals testing for radon to be certified but it is recommended to use a nationally certified radon measurement professional especially if a real estate transaction is involved.
What it means
Manchester, Questions
Questions about radon in Manchester
What radon zone is Manchester in?
EPA's Map of Radon Zones classifies counties, not cities. Hillsborough County is in Zone 2 (moderate predicted potential). A zone is a prediction for a whole county and never tells you the level in one home.
How many radon tests come back high in Manchester's counties?
For 2021, the share of radon tests reported to CDC that were at or above 4 pCi/L was 41.5% in Hillsborough County (610 tests). Each is that county's own figure, counting tests reported to CDC, not homes. Radon411 does not average or combine them into a figure for the city.
Should I test my home in Manchester?
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.
The answers use the published figures of Hillsborough County, the county Manchester lies in.
Explore
Manchester, Next steps
What to do next
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