Akron Has Elevated Radon Risk
Summit County — including Akron and its surrounding communities — is classified as EPA Radon Zone 1, the highest-risk designation in the country. The Akron-Canton corridor in northeastern Ohio consistently reports elevated radon, with many homes measuring above 8.0 pCi/L on first test. Ohio Department of Health (ODH) data places Summit County among the state’s top-tier radon counties — in a state where over 45% of homes already test above the EPA action level of 4.0 pCi/L.
Akron and Summit County sit on glacial till deposited over Pennsylvanian-era sandstone and shale. The clay-rich glacial soils above the bedrock act as a low-permeability cap — trapping radon produced in the underlying sedimentary rock and channeling it toward the lowest-pressure zone available: your basement or crawl space. Summit County’s characteristically hilly terrain adds another dynamic: hillside homes built into slopes expose large areas of foundation wall to direct soil contact, dramatically increasing the surface area through which radon can enter. Akron’s Portage Escarpment geology — where resistant bedrock outcrops meet glacially scoured lowlands — creates locally variable radon concentrations that cannot be predicted without an actual test.
Learn what happens if elevated radon goes unaddressed →
Why Akron Homeowners Should Test
Every home in the Akron area should be tested for radon — regardless of age, construction type, or whether it has a basement.
- Zone 1 designation means your home has a higher-than-average probability of elevated radon.
- Radon varies house to house. Two homes on the same street can have dramatically different levels based on slope exposure, foundation type, and soil contact.
- No symptoms. Radon is colorless, odorless, and tasteless. Testing is the only way to know your exposure level.
- Radon is the #2 cause of lung cancer in the U.S., responsible for an estimated 21,000 deaths per year (EPA).
- Summit County hillside homes face elevated risk from slope-side soil exposure — a structural factor unique to Akron’s terrain that does not apply in flatter Ohio cities.
How to know if you have a radon problem →
How Radon Testing Works in Akron
Short-Term Test (2–7 Days)
A charcoal canister or continuous radon monitor is placed in the lowest livable level for 2–7 days under closed-house conditions. DIY kits cost $15–$50. Professional testing runs $150–$300. In Summit County’s Zone 1 environment, professional testing by an ODH-certified measurer provides the most accurate and legally defensible baseline, especially for homes on sloped lots.
Long-Term Test (90+ Days)
Provides a more accurate annual average. Recommended when short-term results fall between 2–4 pCi/L. Long-term testing is particularly valuable in Akron’s hillside homes, where seasonal soil-pressure changes can cause radon levels to vary significantly between summer and winter months.
Real Estate Testing
Radon testing is common during Akron-area real estate transactions. Certified testers use tamper-resistant continuous radon monitors and provide results within 48–72 hours. Ohio law requires sellers to disclose known environmental hazards including radon. Summit County buyers routinely include radon inspection contingencies, particularly for older homes in Akron’s established neighborhoods.
Schedule a professional radon test →
What Your Results Mean
| Radon Level (pCi/L) | Recommendation |
|---|---|
| Below 2 | Low risk. No action needed. Retest every 2–5 years. |
| 2 to 3.9 | Moderate risk. Consider mitigation. Confirm with a long-term test. |
| 4 and above | EPA action level. Mitigation recommended. |
| 8 and above | High risk. Mitigate as soon as possible. |
Complete guide to radon testing and mitigation →
Radon Mitigation in Akron
If your test result is at or above 4.0 pCi/L, radon mitigation is recommended by the EPA and the Ohio Department of Health. The standard solution for Akron-area homes is sub-slab depressurization (SSD) — a system that creates negative pressure beneath your foundation, drawing radon gas out before it enters your living space and venting it safely above the roofline. For hillside homes with exposed foundation walls, a combination approach may be used: sub-slab depressurization combined with wall ventilation channels to address radon entry through the slope-side block or poured-concrete walls. Mitigation in Summit County typically costs $900–$1,700, depending on foundation complexity and system configuration. Most installations complete within a single day.
Ohio requires radon mitigators to hold active ODH certification. Verify credentials before signing any contract. A post-mitigation test should follow at least 24 hours after installation to confirm the system is performing correctly.
Ohio radon mitigation — what to expect →
Akron’s Radon Risk Factors
Several local factors set Akron apart from other Ohio Zone 1 cities:
- Pennsylvanian-era sandstone and shale bedrock: The sedimentary formations beneath Summit County contain naturally occurring uranium. As these formations continue to decay, they release radon into the overlying glacial soils and ultimately into homes.
- Glacial till cap: The clay-rich glacial till sitting above Akron’s bedrock is dense and low-permeability. Rather than allowing radon to vent upward and disperse, it redirects the gas laterally and concentrates it beneath foundations — particularly beneath slabs and crawl spaces with poor sub-floor ventilation.
- Hilly terrain and slope exposure: Akron’s rolling topography means many homes have hillside foundations — the slope-side walls of walk-out basements and below-grade rooms are in contact with pressurized hillside soil. These walls are a primary radon entry surface unique to sloped terrain.
- Older housing inventory: Much of Summit County’s housing was built between 1920 and 1970. These homes predate radon-resistant construction standards and often have block-wall basements, stone foundations, or dirt crawl spaces that provide direct radon pathways.
- Akron-Canton corridor concentration: The greater Akron-Canton metro area has been documented by ODH as one of the most consistently elevated radon zones in northeastern Ohio. Proximity to the Canton area’s similarly elevated Stark County data reinforces the regional pattern.
Akron Radon FAQs
Why do Akron hillside homes have higher radon risk?
Homes built into hillsides — common throughout Summit County — have foundation walls that are in direct contact with pressurized slope-side soil across a much larger surface area than a flat-lot home. Hillside soil contains radon-laden soil gas under positive pressure from the slope above, which drives it through any crack, joint, or penetration in the foundation wall or floor. Walk-out basements, split-level homes, and below-grade rooms on sloped lots all carry elevated entry risk compared to similar homes on flat terrain.
How does Summit County radon compare to other northeastern Ohio counties?
Summit County is EPA Zone 1, consistent with neighboring Stark, Portage, and Medina counties. However, Akron’s combination of glacial till, Pennsylvanian-era bedrock, and hillside topography produces local concentrations at the higher end of the Zone 1 range. The Akron-Canton corridor as a whole is among the most consistently elevated radon markets in the Ohio EPA regional data.
Does Akron’s industrial history affect radon levels?
No — radon risk in Akron is geological, not industrial. The elevated radon in Summit County homes comes from natural uranium decay in the underlying bedrock and glacial soils. Akron’s manufacturing history (rubber, polymers) is not a contributing factor to residential radon levels. Testing is the only way to establish your individual home’s risk, regardless of neighborhood or proximity to industrial sites.
What ODH certification should I require from an Akron radon contractor?
Ohio requires radon testers and mitigators to hold active Ohio Department of Health (ODH) Radon Program certification. Ask any contractor for their ODH certification number and verify it through the ODH’s online directory before scheduling. NRPP (National Radon Proficiency Program) or NRSB (National Radon Safety Board) national certifications are supplemental markers of competence, but Ohio state certification is the primary legal requirement.
How much does radon mitigation cost in Akron?
Standard sub-slab depressurization in the Akron area costs $900–$1,700 for most single-family homes. Hillside homes or those with complex multi-section foundations may cost $1,500–$2,200 due to additional system components needed to address slope-side wall entry. Post-mitigation testing adds $100–$200 and is strongly recommended to confirm system performance before closing out the project.
Get a Free Radon Quote in Akron, OH
House Radon connects Akron and Summit County homeowners with ODH-certified radon professionals. Whether you need testing, mitigation, or a post-mitigation verification test, we can help. Fill out the form below for a free quote — typically within one business day.
