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Radon in Lewiston, New York

EPA puts Niagara County, where Lewiston 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
11.1%of 9 tests reported to CDC for Niagara County (2023) were at or above 4 pCi/L
Your home
Test to knowNo area figure here is a reading of your home.

The data

Lewiston, What is published

What is published for Lewiston

Information:

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 Lewiston, so every radon figure on this page belongs to a county and is labelled with it. Only a test tells you about one home.

Niagara County has an EPA zone and its own CDC test figures, shown below. About 2,492 people live in Lewiston.

Lewiston, Counties

The county Lewiston lies in

Measured

Each county's own EPA zone and its own published CDC figures for 2023, 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.

Niagara CountyZone 2Moderate predicted potential

11.1%
Reported tests at or above 4 pCi/L, 2023
1.2 pCi/L
Median reported result
9 tests
Tests reported to CDC
10
Annual years on file

The median reported pre-mitigation result for 2023 was 1.2 pCi/L in Niagara 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, 2023.

Radon Action Brief

National Radon Action MonthPre-sale

The radon brief for Lewiston, in one dated file.

  • Your area's radon record, explained.
  • Your plan to test this week.
  • Fix costs and pros near you.

Save 64%Sale price: $8.99Price after the sale: $25Ends Jan 31Then $25

Get the Lewiston BriefSee a free sample

Area data, not a test of the building.

What it means

Lewiston, Questions

Questions about radon in Lewiston

What radon zone is Lewiston in?

EPA's Map of Radon Zones classifies counties, not cities. Niagara 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 Lewiston's counties?

For 2023, the share of radon tests reported to CDC that were at or above 4 pCi/L was 11.1% in Niagara County (9 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 Lewiston?

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 Niagara County, the county Lewiston lies in.