Accustar / Air Chek
Harrisburg, PA
Listed for: Laboratory
Verified:Pennsylvania state license
No phone or website on the list. Licenses on the profile.
Locations and reports
Radon in Harrisburg, Pennsylvania
EPA puts Dauphin County, where Harrisburg is, in Zone 1, its highest radon zone, and 36.9% of its 2,986 reported radon tests (2020) were at or above 4 pCi/L. Homes with elevated levels occur in all three zones, so only a test measures yours.
Data checked By Radon411Methodology
Share at 4+ pCi/L
36.9%
6.6 pts above PA
- Dauphin
- 36.9%
- PA
- 30.3%
Dauphin, 38th of 63 in PA, 2020
Median result
2.0pCi/L
Below action level
- Dauphin
- 2.0 pCi/L
- EPA
- 4.0 pCi/L
Midpoint of Dauphin's tests, 2020
Nearest county
43.6%
Cumberland, 22 miles
- Cumberland
- 43.6%
- Dauphin
- 36.9%
2,950 tests, 2020
EPA radon zone
Zone 1
Highest potential
- Zone 1
- 2
- 3
1 highest, 3 lowest
Dauphin, where Harrisburg is
Tests reported
2,986
In Dauphin
- Dauphin
- 2,986
- Cumberland
- 2,950
Reported to CDC before any fix, 2020
Read a result for Harrisburg
Starts at Dauphin County's median, 2.0 pCi/L
EPA’s own thresholds; the figures are the area’s, never this home’s.
EPA’s reading of 2.0 pCi/L
Between 2 and 4 pCi/L
- Under 20 to 1.9 pCi/L
- 2 to 4consider a fix
- 4 and aboveEPA says fix it
This result is between 2 and 4 pCi/L. EPA recommends considering a fix when the level is between 2 and 4 pCi/L. Dauphin County's median reported result, 2020.
The data
Harrisburg, What is published
What is published for Harrisburg
Information:
Every figure for Harrisburg is a county's
Radon data is published by county, not by city, so for Harrisburg it is Dauphin County's: its EPA zone (Zone 1) and the 2,986 tests reported to CDC for 2020. Only a test tells you about one home.
Harrisburg covers 8.1 square miles of land, all of it in Dauphin County. Its 50,522 residents live 6,223 to the square mile.
Harrisburg, Counties
The county Harrisburg lies in
MeasuredDauphin County's EPA zone and the figures CDC publishes for it, 2020.
Dauphin CountyZone 1Highest predicted potential
- 36.9%
- Reported tests at or above 4 pCi/L
- 2.0 pCi/L
- Median reported result
- 2,986 tests
- Tests reported to CDC
- 7
- Annual years on file
Dauphin County ranks 38th of 63 Pennsylvania counties with 30 or more tests for that period, 6.6 points above the 30.3% pooled across Pennsylvania's counties, 11.4 points above the national pool of 25.5%.
The counties nearest Harrisburg with a CDC figure for 2020, measured from the middle of the city: Cumberland County (22 miles, 43.6% of 2,950 tests), Perry County (22 miles, 57.7% of 189 tests) and Lebanon County (23 miles, 54.2% of 1,102 tests). Across the 8 nearest, the share at or above 4 pCi/L runs from 39.7% to 57.7%; the farthest of them, Lancaster County, is 37 miles away at 43.3%.
The directory lists 4 businesses with an address in Harrisburg, 2 for testing and 1 for mitigation. Pennsylvania's other cities with a page of their own: Pittsburgh, Allentown, Scranton and Malvern.
The counties around Harrisburg
By distance from the middle of Harrisburg; counties with 30 or more tests.
Predicted: EPA Map of Radon Zones, by county. Measured: CDC tracking data, by county, 2020.
Harrisburg, Geology
The ground under Harrisburg
PredictedUSGS's geologic map puts all of Harrisburg's mapped land in one class: high radon potential. All of it lies in the area the map calls Great Valley Section, to which USGS gives a radon index of 15, in the high band (12 to 17).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| Great Valley Section | Sandstone, shale and siltstone. | High | 15 | 100% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Harrisburg beside its county and Pennsylvania
All of Harrisburg, like all of Dauphin County, is rated high. Harrisburg has more high-potential ground than Pennsylvania as a whole: 100% of its land against 70.4%.
The map rates the ground, not the air in any home.
Harrisburg, Homes
Homes in Harrisburg
Fewer than six in ten of Harrisburg's 24,496 homes are detached houses (14%, against 50% across Dauphin County); the rest are attached, in shared buildings or mobile. The homes are older than Dauphin County's as a whole: half were built before 1947 (1970 for Dauphin County), and 68% date from before 1960. Most occupied homes here are rented: owners live in 37% (Dauphin County: 63%). A tenant can run a test; a fix is the landlord's to make.
| Homes | Harrisburg | Dauphin County | Pennsylvania |
|---|---|---|---|
| Housing units | 24,496 | 127,259 | 5,779,663 |
| Detached houses | 14% | 50% | 57% |
| In buildings of 5 or more | 27% | 17% | 13% |
| Mobile homes | 1% | 3% | 4% |
| Built before 1960 | 68% | 39% | 45% |
| Built since 2000 | 4% | 16% | 14% |
| Middle year built | 1947 | 1970 | 1965 |
| Owner-occupied | 37% | 63% | 69% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.
Local help
Harrisburg, Professionals
Radon professionals listed in Harrisburg
Businesses whose listed city is Harrisburg, from the state registries and listings in the Radon411 directory, with the same business and certification status the directory shows.
Radon professionals listed in Harrisburg: 1 of 4
4 listings with Harrisburg as the city. See radon mitigation and testing in Harrisburg, or all radon professionals in Pennsylvania.
Harrisburg, Local resources
Local resources for Harrisburg
Who to ask in Pennsylvania: its radon program, test kits and professionals.
- Radon DivisionRun by Department of Environmental Protection, phone 800-237-2366.Visit the program’s page(opens in a new tab)
- Free and low-cost kitsThe program says:
Through an EPA-funded program, hospitals give parents of newborn children a packet of information which includes a coupon for a free radon test kit from the DEP.
- Compare kits
- Professionals in Pennsylvania4 listings cover Harrisburg.
The program's own words on licensing are on the Pennsylvania page.
What it means
Harrisburg, Questions
Questions about radon in Harrisburg
What radon zone is Harrisburg in?
EPA's map puts Dauphin County, and with it Harrisburg, in Zone 1, the map's highest class: a predicted county average above 4 pCi/L.
What are radon levels in Harrisburg?
A high result is no surprise around Harrisburg: 36.9% of 2,986 tests reported from Dauphin County for 2020 reached 4 pCi/L or more. The median reported result was 2.0 pCi/L.
Should I test my home in Harrisburg?
Yes. About 1,102 of the 2,986 tests reported from Dauphin County were at or above 4 pCi/L. That is above Pennsylvania's pooled 30.3%, and ranks Dauphin County 38th of the 63 Pennsylvania counties with 30 or more tests. No map says which homes those are. How to test a home.
What ground is Harrisburg built on, as far as radon goes?
USGS's geologic map puts all of Harrisburg on one named area, "Great Valley Section", rated high for radon potential, radon index 15.
Is radon higher in the counties around Harrisburg?
Yes, in every direction measured. Each of the 8 nearest counties with a figure reports a larger share of high tests than Dauphin County's 36.9%; the highest is Perry County (57.7%, 22 miles off).
Who tests for or fixes radon in Harrisburg?
Radon411's directory has 4 businesses with an address in Harrisburg, 2 listed for testing and 1 for mitigation. Every entry names the public list it was taken from. Radon professionals in Harrisburg.
The answers use the published figures of Dauphin County, the county Harrisburg lies in.
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