Ohio Radon Blog · State-specific authoritative content

Ohio Radon Blog

Original Ohio-focused radon content — geological deep dives, real estate transaction playbooks, regulatory explainers, contractor verification guides, and seasonal awareness articles. Each article cross-references authoritative sources (EPA, ALA, AARST, Ohio DEP/HHS) and is regularly updated to reflect current standards.

GeologyReal Estate

Ohio radon geology · Northeast OH

Devonian Ohio Shale: Why Northeast Ohio Has Some of America's Highest Indoor Radon Levels

The Devonian-age Ohio Shale formation is one of the most uranium-rich rock units in the eastern United States. It underlies most of Northeast Ohio — from Cleveland to Youngstown — and is a major driver of the region's elevated indoor radon levels. Learn how Ohio Shale forms radon, which counties are most affected, and what mitigation contractors do differently when the bedrock is Ohio Shale.

Geology · 7 min Read article →

Ohio radon geology · Statewide

Ohio's Two Radon Belts: Glacial Till (North) vs. Appalachian Plateau (East) — A Geological Tour

The Glacial Boundary — running roughly diagonally from Cincinnati to Northeast Ohio — divides Ohio into two distinct radon geologies. North and west: glacial till from Wisconsinan-era glaciation. East and southeast: the unglaciated Appalachian Plateau with exposed bedrock. Both regions are EPA Zone 1, but the radon source and mitigation strategy are different.

Geology · 8 min Read article →

Ohio real estate · Statewide

Ohio Real Estate Seller Disclosure (Ohio Rev. Code § 5302.30): What Radon Disclosure Means for Buyers and Sellers

Ohio Rev. Code § 5302.30 requires sellers of residential property (1-4 unit dwellings) to provide buyers with the state-prescribed Residential Property Disclosure Form. Section 6 of that form specifically addresses radon — and how a seller completes it can determine whether testing or mitigation becomes a contingency, a price reduction, or a deal-breaker. Here's a plain-English walkthrough for both sides of the transaction.

Real Estate · 7 min Read article →

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