What Is Radon?


Understanding Radon Gas and Why Mitigation Matters

Radon is a colorless, odorless, radioactive gas that forms naturally from the decay of uranium in soil, rock, and water. Because it has no detectable smell or color, radon can accumulate to dangerous levels inside a home without any visible signs. It is the second leading cause of lung cancer in the United States, responsible for an estimated 21,000 deaths per year — more than drunk driving.


How Radon Enters Your Home

Radon rises from the soil and enters homes through any opening where the structure contacts the ground:

  • Cracks in solid floors and foundation walls
  • Construction joints
  • Gaps around service pipes and utility penetrations
  • Gaps in suspended floors
  • Cavities inside walls
  • Sump pump basins
  • Crawl spaces

Even the outdoor air contains trace amounts of radon — but once it enters a home, it concentrates to levels that can become a serious long-term health hazard. Homes in Ohio, particularly those in central and southern Ohio, are located in regions where radon accumulation is an established concern.


The Health Risks of Radon

Radon is radioactive, and long-term exposure to elevated levels causes tissue damage and lung cancer. The EPA sets the action level at 4.0 pCi/L (picocuries per liter of air) — but even levels below that threshold carry risk. The good news is that radon can be effectively and durably reduced with a professionally installed mitigation system.


The Solution: Radon Mitigation System Installation

A sub-slab depressurization system — the most widely used and effective method of radon mitigation — uses a fan to create negative pressure beneath your home's foundation. This draws radon from the soil before it can enter your home and vents it safely to the exterior. Once installed, the system operates continuously and quietly, maintaining your home's radon levels at safe concentrations.


ProCheck Radon Systems LLC is licensed by the Ohio Department of Health to design and install radon mitigation systems throughout central Ohio and the surrounding region. Our owner-operated team brings more than 30 years of professional experience to every installation.


Ohio Radon Risk

Ohio is among the states with elevated radon risk, particularly in central and southern Ohio where geological conditions favor radon accumulation. Counties including Licking, Fairfield, Delaware, Pickaway, Ross, and many others throughout the state have documented elevated radon levels. Having a mitigation system installed is one of the most important health investments an Ohio homeowner can make.

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