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Radon Levels in Allegheny County, Pennsylvania

Zone 1Highest predicted potential741 square miles · 5 bordering counties

What this means for you

  • Your area: EPA rates Allegheny 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 8,337 radon tests reported to CDC for Allegheny County (2020), 30.5% 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.
How to testFind a certified tester

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 2020, 30.5% of the radon tests reported to CDC for Allegheny County, Pennsylvania came back at or above the EPA action level of 4 pCi/L, and the median result was 2.5 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 100% of the county's land area

Predicted: EPA Map of Radon Zones

Measured: tests reported to CDC

Radon tests reported for Allegheny County, 2020

Tests reported
8,337
At or above 4 pCi/L
30.5%
Median result
2.5 pCi/L
Reported results by concentration band, Allegheny County, 2020
Under 2 pCi/L: 40%2 to 4 pCi/L: 30%4 pCi/L and above: 31%

Of 8,337 pre-mitigation tests reported to CDC, not homes in this area. CDC publishes the share in each band, not a count per band, so the per-band counts in the table are calculated by Radon411 and rounded to add up to the published total.

Reported results by concentration band, Allegheny County, 2020: data table
Result bandTests Calculated by Radon411Share Measured
Under 2 pCi/L3,30139.6%
2 to 4 pCi/L2,49329.9%
4 pCi/L and above2,54330.5%

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: 2020. Measured data period: 2005 to 2020 (every CDC figure on file).

Allegheny County, In figures

Allegheny County in figures

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

    • Predicted

      Predicted

      EPA places Allegheny County in Zone 1, highest predicted potential, as it does 48 other counties of Pennsylvania's 67.

      Of the 5 bordering counties, EPA places Armstrong County, Beaver County, Butler County and Westmoreland County in Zone 1 and Washington County in Zone 2.

  • Reported tests

    Measured

    CDC has annual figures for Allegheny County for 7 years, 2014 to 2020. In 2020, 30.5% of 8,337 reported tests were at or above 4 pCi/L.

    Across those years the share ranged from 26.4% (2018) to 36.0% (2014). Few tests in a year can move it a long way.

  • Local record

    Pennsylvania's radon program is the Radon Division, run by Department of Environmental Protection; its contacts are under Local resources.

    The county's largest incorporated places are Pittsburgh, Bethel Park and Monroeville; the figures here cover them as part of the county.

Allegheny County, Reported testing

Reported testing over time

Measured
Reported radon test results by year, Allegheny 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, Allegheny County, pCi/L: data table
YearMedian reported resultHighest reported resultShare of tests at or above 4 pCi/L
20142.8 pCi/L147.6 pCi/L36.0%
20152.7 pCi/L304.0 pCi/L33.4%
20162.6 pCi/L283.3 pCi/L33.5%
20172.6 pCi/L115.8 pCi/L31.5%
20182.2 pCi/L190.0 pCi/L26.4%
20192.4 pCi/L307.9 pCi/L30.6%
20202.5 pCi/L189.5 pCi/L30.5%

What these figures count

Every percentage here is a share of radon tests reported to CDC for Allegheny County in 2020. It is not a share of homes in Allegheny 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 (8,337 for 2020). CDC also reports the number of buildings tested (6,123), a different count, so the two totals are not interchangeable.

Allegheny County, State data

Pennsylvania's own radon test data

Measured

What Pennsylvania's own agencies publish about radon tests in Allegheny County, with their period. These are not CDC's figures and are never added to them.

MeasuredState figures, not CDC's

What Pennsylvania DEP reports for the ZIP codes in Allegheny County

Pennsylvania DEP publishes its figures by ZIP code, not by county. These are the 118 ZIP codes that lie wholly or partly in Allegheny County, each with the state's own figures for it. Period: Period not stated by DEP.

ZIP codes in Allegheny County
ZIP codeWhat the state reports
15003Basement: average 7.9 pCi/L, 1,330 tests; First floor: average 3.7 pCi/L, 48 tests
15005Basement: average 7.3 pCi/L, 1,813 tests; First floor: average 3.6 pCi/L, 79 tests
15006Basement: figures not shown
15007Basement: average 5.1 pCi/L, 59 tests; First floor: figures not shown
15014Basement: average 3.1 pCi/L, 175 tests; First floor: figures not shown
15015Basement: average 9.6 pCi/L, 609 tests; First floor: average 6.5 pCi/L, 48 tests
15017Basement: average 3.8 pCi/L, 3,119 tests; First floor: average 2.0 pCi/L, 231 tests
15018Basement: average 3.7 pCi/L, 45 tests; First floor: figures not shown
15020Basement: figures not shown
15024Basement: average 5.7 pCi/L, 1,430 tests; First floor: average 5.5 pCi/L, 68 tests
15025Basement: average 4.5 pCi/L, 1,154 tests; First floor: average 2.7 pCi/L, 79 tests
15026Basement: average 9.9 pCi/L, 597 tests; First floor: average 6.8 pCi/L, 30 tests
15028Basement: figures not shown
15030Basement: average 4.6 pCi/L, 48 tests; First floor: figures not shown
15031Basement: figures not shown; First floor: figures not shown
15034Basement: average 3.1 pCi/L, 78 tests; First floor: figures not shown
15035Basement: average 3.8 pCi/L, 107 tests; First floor: figures not shown
15037Basement: average 4.3 pCi/L, 1,021 tests; First floor: average 4.3 pCi/L, 56 tests
15044Basement: average 7.9 pCi/L, 9,325 tests; First floor: average 6.2 pCi/L, 669 tests
15045Basement: average 3.2 pCi/L, 223 tests; First floor: figures not shown
15046Basement: average 6.5 pCi/L, 410 tests; First floor: figures not shown
15047Basement: figures not shown
15049Basement: average 2.7 pCi/L, 89 tests; First floor: figures not shown
15051Basement: average 15.3 pCi/L, 68 tests; First floor: figures not shown
15056Basement: average 3.9 pCi/L, 175 tests; First floor: figures not shown
15057Basement: average 5.6 pCi/L, 2,345 tests; First floor: average 4.2 pCi/L, 107 tests
15063Basement: average 4.6 pCi/L, 861 tests; First floor: average 4.4 pCi/L, 40 tests
15064Basement: average 3.8 pCi/L, 49 tests; First floor: figures not shown
15065Basement: average 5.4 pCi/L, 1,142 tests; First floor: average 6.2 pCi/L, 56 tests
15068Basement: average 5.7 pCi/L, 3,496 tests; First floor: average 5.0 pCi/L, 187 tests
15071Basement: average 4.1 pCi/L, 1,371 tests; First floor: average 2.9 pCi/L, 84 tests
15075Basement: figures not shown; First floor: figures not shown
15076Basement: average 4.0 pCi/L, 55 tests; First floor: figures not shown
15082Basement: figures not shown
15083Basement: average 4.7 pCi/L, 50 tests; First floor: figures not shown
15084Basement: average 7.5 pCi/L, 730 tests; First floor: average 4.7 pCi/L, 34 tests
15085Basement: average 4.6 pCi/L, 1,310 tests; First floor: average 3.2 pCi/L, 60 tests
15086Basement: average 6.0 pCi/L, 193 tests; First floor: figures not shown
15088Basement: figures not shown
15089Basement: average 5.9 pCi/L, 372 tests; First floor: average 4.5 pCi/L, 57 tests
15090Basement: average 8.5 pCi/L, 12,098 tests; First floor: average 5.7 pCi/L, 982 tests
15101Basement: average 6.9 pCi/L, 6,748 tests; First floor: average 4.5 pCi/L, 532 tests
15102Basement: average 4.0 pCi/L, 6,724 tests; First floor: average 2.4 pCi/L, 363 tests
15104Basement: average 4.5 pCi/L, 215 tests; First floor: figures not shown
15106Basement: average 4.3 pCi/L, 2,301 tests; First floor: average 2.6 pCi/L, 139 tests
15108Basement: average 6.0 pCi/L, 6,672 tests; First floor: average 4.2 pCi/L, 631 tests
15110Basement: average 4.8 pCi/L, 123 tests; First floor: figures not shown
15112Basement: average 3.4 pCi/L, 150 tests; First floor: figures not shown
15116Basement: average 6.4 pCi/L, 3,415 tests; First floor: average 3.9 pCi/L, 197 tests
15120Basement: average 4.2 pCi/L, 1,750 tests; First floor: average 2.2 pCi/L, 60 tests
15122Basement: average 3.9 pCi/L, 2,409 tests; First floor: average 2.7 pCi/L, 62 tests
15123Basement: figures not shown
15126Basement: average 4.5 pCi/L, 1,411 tests; First floor: average 3.3 pCi/L, 93 tests
15129Basement: average 4.1 pCi/L, 1,661 tests; First floor: average 2.8 pCi/L, 138 tests
15131Basement: average 4.4 pCi/L, 1,075 tests; First floor: figures not shown
15132Basement: average 6.3 pCi/L, 733 tests; First floor: average 3.4 pCi/L, 33 tests
15133Basement: average 4.2 pCi/L, 398 tests; First floor: figures not shown
15135Basement: average 4.8 pCi/L, 407 tests; First floor: figures not shown
15136Basement: average 4.2 pCi/L, 1,545 tests; First floor: average 3.5 pCi/L, 34 tests
15137Basement: average 4.6 pCi/L, 782 tests; First floor: average 1.8 pCi/L, 55 tests
15139Basement: average 3.1 pCi/L, 1,103 tests; First floor: average 1.4 pCi/L, 99 tests
15140Basement: average 4.0 pCi/L, 175 tests; First floor: figures not shown
15142Basement: average 4.0 pCi/L, 430 tests; First floor: figures not shown
15143Basement: average 7.2 pCi/L, 9,156 tests; First floor: average 4.3 pCi/L, 738 tests
15144Basement: average 3.4 pCi/L, 466 tests; First floor: figures not shown
15145Basement: average 4.1 pCi/L, 473 tests; First floor: figures not shown
15146Basement: average 5.5 pCi/L, 5,878 tests; First floor: average 3.7 pCi/L, 290 tests
15147Basement: average 4.7 pCi/L, 1,933 tests; First floor: average 3.3 pCi/L, 83 tests
15148Basement: average 2.9 pCi/L, 80 tests; First floor: figures not shown
15201Basement: average 2.6 pCi/L, 2,222 tests; First floor: average 1.9 pCi/L, 109 tests
15202Basement: average 4.8 pCi/L, 2,681 tests; First floor: average 3.6 pCi/L, 129 tests
15203Basement: average 2.6 pCi/L, 1,534 tests; First floor: average 1.6 pCi/L, 132 tests
15204Basement: average 4.4 pCi/L, 591 tests; First floor: average 2.0 pCi/L, 43 tests
15205Basement: average 3.8 pCi/L, 2,789 tests; First floor: average 2.3 pCi/L, 293 tests
15206Basement: average 3.1 pCi/L, 3,271 tests; First floor: average 1.8 pCi/L, 234 tests
15207Basement: average 3.6 pCi/L, 1,175 tests; First floor: average 3.1 pCi/L, 43 tests
15208Basement: average 3.4 pCi/L, 1,314 tests; First floor: average 1.8 pCi/L, 126 tests
15209Basement: average 5.3 pCi/L, 1,874 tests; First floor: average 5.4 pCi/L, 134 tests
15210Basement: average 4.0 pCi/L, 1,519 tests; First floor: average 2.3 pCi/L, 50 tests
15211Basement: average 3.5 pCi/L, 1,518 tests; First floor: average 2.4 pCi/L, 66 tests
15212Basement: average 3.7 pCi/L, 2,839 tests; First floor: average 2.1 pCi/L, 161 tests
15213Basement: average 3.4 pCi/L, 972 tests; First floor: average 1.8 pCi/L, 158 tests
15214Basement: average 4.8 pCi/L, 1,652 tests; First floor: average 3.3 pCi/L, 77 tests
15215Basement: average 4.2 pCi/L, 3,218 tests; First floor: average 3.0 pCi/L, 241 tests
15216Basement: average 3.0 pCi/L, 3,951 tests; First floor: average 2.0 pCi/L, 258 tests
15217Basement: average 4.2 pCi/L, 6,986 tests; First floor: average 2.4 pCi/L, 689 tests
15218Basement: average 3.6 pCi/L, 3,213 tests; First floor: average 2.5 pCi/L, 174 tests
15219Basement: average 3.8 pCi/L, 378 tests; First floor: average 1.2 pCi/L, 44 tests
15220Basement: average 3.4 pCi/L, 2,975 tests; First floor: average 2.8 pCi/L, 174 tests
15221Basement: average 4.1 pCi/L, 4,261 tests; First floor: average 2.8 pCi/L, 289 tests
15222Basement: average 2.9 pCi/L, 154 tests; First floor: figures not shown
15223Basement: average 4.6 pCi/L, 911 tests; First floor: average 2.4 pCi/L, 41 tests
15224Basement: average 2.0 pCi/L, 896 tests; First floor: average 1.5 pCi/L, 53 tests
15225Basement: average 3.1 pCi/L, 91 tests; First floor: figures not shown
15226Basement: average 3.2 pCi/L, 2,256 tests; First floor: average 1.8 pCi/L, 61 tests
15227Basement: average 3.5 pCi/L, 4,049 tests; First floor: average 1.7 pCi/L, 234 tests
15228Basement: average 3.6 pCi/L, 5,308 tests; First floor: average 2.2 pCi/L, 568 tests
15229Basement: average 6.3 pCi/L, 2,960 tests; First floor: average 4.6 pCi/L, 207 tests
15232Basement: average 2.8 pCi/L, 1,717 tests; First floor: average 1.7 pCi/L, 162 tests
15233Basement: average 2.4 pCi/L, 216 tests; First floor: figures not shown
15234Basement: average 3.4 pCi/L, 2,786 tests; First floor: average 2.1 pCi/L, 195 tests
15235Basement: average 4.7 pCi/L, 5,384 tests; First floor: average 3.6 pCi/L, 272 tests
15236Basement: average 3.7 pCi/L, 4,945 tests; First floor: average 2.6 pCi/L, 329 tests
15237Basement: average 7.4 pCi/L, 15,250 tests; First floor: average 4.6 pCi/L, 1,235 tests
15238Basement: average 7.3 pCi/L, 5,869 tests; First floor: average 4.7 pCi/L, 534 tests
15239Basement: average 4.8 pCi/L, 2,928 tests; First floor: average 4.5 pCi/L, 115 tests
15241Basement: average 4.0 pCi/L, 6,779 tests; First floor: average 3.0 pCi/L, 658 tests
15243Basement: average 3.4 pCi/L, 3,931 tests; First floor: average 2.3 pCi/L, 362 tests
15260Basement: figures not shown; First floor: figures not shown
15275Basement: figures not shown; First floor: figures not shown
15290Basement: figures not shown
15321Basement: average 4.9 pCi/L, 246 tests; First floor: figures not shown
15332Basement: average 4.7 pCi/L, 773 tests; First floor: average 2.9 pCi/L, 34 tests
15642Basement: average 5.1 pCi/L, 4,782 tests; First floor: average 4.1 pCi/L, 170 tests
15668Basement: average 6.8 pCi/L, 4,314 tests; First floor: average 5.0 pCi/L, 215 tests
16046Basement: average 7.0 pCi/L, 4,895 tests; First floor: average 4.6 pCi/L, 365 tests
16055Basement: average 9.8 pCi/L, 1,378 tests; First floor: average 5.0 pCi/L, 72 tests
16059Basement: average 9.6 pCi/L, 1,665 tests; First floor: average 5.0 pCi/L, 162 tests
  • DEP's report gives the number of tests, the highest result and the average result for each floor tested; it states no period.
  • DEP says the smartest thing to do is to test your home for radon, no matter where you live.
  • A ZIP code that crosses the county line is listed whole; its figures cover all of it.

Measured: Pennsylvania DEP data, Period not stated by DEP.

Allegheny County, Comparison

How Allegheny County compares

Measured

Allegheny 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

2020, highest first. Each county’s own published CDC figure.

  1. Armstrong CountyPA187 tests47.6%
  2. Beaver CountyPA868 tests42.4%
  3. Butler CountyPA1,492 tests42.3%
  4. Westmoreland CountyPA1,588 tests34.9%
  5. Washington CountyPA1,227 tests33.6%
  6. Allegheny CountyThis page8,337 tests30.5%

Median reported result

Measured

2020, highest first. Each county’s own published CDC figure.

  1. Armstrong CountyPA187 tests3.7 pCi/L
  2. Butler CountyPA1,492 tests3.3 pCi/L
  3. Beaver CountyPA868 tests3.2 pCi/L
  4. Washington CountyPA1,227 tests2.8 pCi/L
  5. Westmoreland CountyPA1,588 tests2.6 pCi/L
  6. Allegheny CountyThis page8,337 tests2.5 pCi/L

Each figure is that county’s own published CDC figure for 2020, counting radon tests reported to CDC, not homes. Allegheny 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 Pennsylvania county’s own figure is in the Pennsylvania county table.

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

Allegheny County, Bordering counties

Counties bordering Allegheny County

Calculated by Radon411

5 counties share a boundary with Allegheny 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.

Allegheny County, Local resources

Local resources in Pennsylvania

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

Radon Division

Department of Environmental Protection

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

Phone
800-237-2366
Licensing of radon professionals
The Radon Certification Act requires DEP to establish by regulation, a certification program for persons conducting radon gas and radon progeny testing, laboratory analysis and mitigation...
Visit the program's page(opens in a new tab)

Test kits

The 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.

Free and low-cost kitsCompare kits

Radon professionals

755 professionals are listed in Pennsylvania.

Professionals in Pennsylvania

Allegheny County, Cities and towns

Cities and towns in Allegheny County

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

  • Pittsburgh
  • Bethel Park
  • Monroeville
  • Plum
  • Baldwin
  • West Mifflin
  • McKeesport
  • Franklin Park
  • Whitehall
  • Wilkinsburg
  • Jefferson Hills
  • Munhall
  • Brentwood
  • Pleasant Hills
  • Swissvale
  • Castle Shannon
  • Bellevue
  • Dormont
  • Carnegie
  • White Oak
  • Oakmont
  • West View
  • Forest Hills
  • Clairton
The other 64 places in Allegheny County
  • Crafton
  • McKees Rocks
  • Coraopolis
  • Fox Chapel
  • Duquesne
  • Turtle Creek
  • Green Tree
  • Avalon
  • Bridgeville
  • Glassport
  • Tarentum
  • North Braddock
  • Sewickley
  • Port Vue
  • Etna
  • Springdale
  • Ingram
  • Mount Oliver
  • Millvale
  • Trafford (part)
  • Brackenridge
  • Churchill
  • Edgewood
  • Sharpsburg
  • Pitcairn
  • Homestead
  • Aspinwall
  • Verona
  • Emsworth
  • Liberty
  • McDonald (part)
  • Rankin
  • East McKeesport
  • East Pittsburgh
  • Ben Avon
  • West Homestead
  • Wilmerding
  • Braddock Hills
  • Braddock
  • Edgeworth
  • Cheswick
  • Dravosburg
  • Bell Acres
  • Oakdale
  • Versailles
  • Blawnox
  • Elizabeth
  • Heidelberg
  • Bradford Woods
  • Whitaker
  • Leetsdale
  • Lincoln
  • Sewickley Heights
  • Chalfant
  • Sewickley Hills
  • Pennsbury Village
  • Glen Osborne
  • Wall
  • Thornburg
  • Rosslyn Farms
  • West Elizabeth
  • Ben Avon Heights
  • Glenfield
  • Haysville

88 incorporated places, as listed in the U.S. Census Bureau’s 2020 place reference files. “(part)” marks a place that extends into another county.

Allegheny County, Questions

Questions about radon in Allegheny County

Common questions8 questions, answered from the figures above

Are radon levels high in Allegheny County?

In 2020, 30.5% of the radon tests reported to CDC for Allegheny County, Pennsylvania were at or above 4 pCi/L, and the median reported pre-mitigation result was 2.5 pCi/L. That is a share of reported tests, not of homes. EPA places Allegheny 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 Pennsylvania

How do I get a radon test in Allegheny 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 Allegheny County as a service area yet. The Pennsylvania 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 statePennsylvania radon program

Who does radon mitigation in Allegheny County?

No listed mitigator names Allegheny County as a service area yet; the Pennsylvania directory lists 755 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 Pennsylvania requires one.

How radon mitigation worksWhat mitigation costsMitigators in Pennsylvania

What EPA radon zone is Allegheny County in?

EPA places Allegheny County, Pennsylvania 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 Allegheny 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 Allegheny County?

Allegheny 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 Allegheny County, Pennsylvania in 2020. 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.

Allegheny County, Products

Testing and mitigation products

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

Testing

Mitigation

Allegheny County, Keep reading

Keep reading

Allegheny 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.