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RADON411

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Home Detective Property Inspections

Gladstone, Missouri. Testing

1 Kansas state license verified against the Kansas Department of Health and Environment, Kansas Radon Program list, last checked October 4, 2026.

Credentials

Licenses and certifications

1 credential is on file for this business, exactly as the issuer's list printed it.

These are Kansas licenses, and the business address is in Missouri.

Radon411 has no Missouri record for this business. Before hiring it for a home in Missouri, check what Missouri asks for. What Missouri requires

Kansas state license (1)

Issued by the Kansas Department of Health and Environment, Kansas Radon Program, not by NRPP or NRSB. Radon411 last checked the list on October 4, 2026. No expiry date is on the record.

LicenseNumberStatus on the listVerifiedCheck with the issuer
Testing licenseNo. KS-MS-0499Kansas certified radon measurement technicianVerified October 4, 2026Verify KS-MS-0499 with the Kansas Department of Health and Environment, Kansas Radon Program (opens in a new tab)

Licensing in Missouri

Ask Missouri Radon Program what it requires before you hire.

Missouri Radon Program, Missouri Department of Health and Senior Services, 573-751-6102.

What Missouri requires, in its program’s own words, and how to check a credential

Local radon figures

Radon in Gladstone

Gladstone lies in Clay County, where 44.6% of 83 radon tests reported to CDC (2023) were at or above 4 pCi/L, 8.9 points above Missouri pooled (35.7%), 1st of 7 Missouri counties with 30 or more tests.

Radon test figures for the county Gladstone lies in
CountyTestsAt or above 4 pCi/LMedianMissouri, pooledRank in the stateEPA zone
Clay County8344.6%3.6 pCi/L35.7%1 of 7Zone 1

Shares of tests people chose to run and report, by county (2023); the state's is its counties' counts added up, calculated by Radon411. Only a test measures a home.

The counties around Gladstone

Around Clay County, where Gladstone lies, the nearest Missouri counties with a CDC figure for 2023 run from 22.6% to 44.1% of tests at or above 4 pCi/L; the closest, Jackson County, is 21 miles away at 44.1%.

The nearest Missouri counties to Clay County with 30 or more tests, 2023
CountyDistanceTestsAt or above 4 pCi/LMedian
Jackson County21 mi20444.1%3.4 pCi/L
Boone County116 mi6342.9%3.6 pCi/L
Greene County153 mi4827.1%2.9 pCi/L
St. Charles County205 mi10340.8%3.4 pCi/L
St. Louis County219 mi44322.6%2.0 pCi/L
Jefferson County222 mi3638.9%3.4 pCi/L

Nearby

Radon professionals nearest Gladstone

More radon professionals in GladstoneMore radon professionals in Missouri

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