RADON TESTING cont’d
Radon Inspection Information
NE Ohio Radon Gas Information – Reprinted from the Ohio EPA Web Site
The series passes ultimately through radium directly to radon, which, in turn, decays to other elements. Of all the elements produced in the uranium decay series, only radon is a gas.
Because radon is a gas, it easily drifts upward through the ground to the Earth’s surface. How much of it reaches the surface depends on the uranium content of the underlying earth materials together with their depth and permeability (that is, the presence of fractures and interconnected pore spaces that act as conduits for radon). Radon will enter the lowest level of a building using whatever pathways are available. For structures with basements or slab-on-grade foundations, the entry points include (1) cracks and pores in floor slabs, walls, and floor-wall joints; and (2) openings around sump pumps, floor drains, and pipes penetrating floors and walls. Structures with a crawl space between the ground and lowest floor level may be less vulnerable to radon, which tends to escape to the outside air when appropriate vents are installed, but can still admit some of the gas through cracks in the flooring.
In Ohio, a geologic formation known as the “Ohio Shale” is enriched in uranium in amounts commonly between 10 and 40 ppm. This black, organic- and clay-rich rock originally formed 370 million years ago as a muddy sediment on the bottom of an ancient sea. The formation, which is only uriniferous west of the longitude of Cleveland, now underlies the surface of Ohio in a narrow belt running westward along the Lake Erie shore from Ashtabula County to Erie County, where it turns south and continues through the middle of the state, including Franklin County, and crosses the Ohio River in Adams and Scioto counties. This formation also underlies parts of Logan County in the west-central part of the state.
Much of the soil in Ohio contains quantities of uranium and radium. These minerals continuously break down to release radon gas. Therefore, Ohio’s geology provides an ongoing supply of radon.
In addition, a significant percentage of Ohio homes have high levels of radon in the indoor air because of how they are built and how they are operated in our climate. One important factor is that many Ohio homes have basements that are used as living spaces. ODH estimates that about one in two of Ohio homes have enough radon to pose a substantial risk to the occupants’ health over many years of exposure. In some areas of the state, the percentage of homes that have high levels of radon is even larger.
A licensed radon tester may be used when an unbiased third party is desired. Under Ohio law, only the homeowner may test; any other tester must be an Ohio licensed radon tester. Although tests by licensed testers should be of high quality, they are still subject to the uncertainties related to the timing and duration of the test (see ODH fact sheet, Radon Testing and Use of Test Results, available by calling (1-800-523-4439).
Dan Gibson was extremely generous with his time explaining the process and his intentions for the inspection. In each phase of the inspection he checked in with us and and went over any issues he felt pertinent to bring up. His work was very thorough, and similarly the report was as well. In addition the report was received promptly after the inspection. Finally, Dan reiterated if we had any questions we could contact him anytime, which we did and he was very accommodating. Thanks for your time and effort. ⭐️⭐️⭐️⭐️⭐️
I have nothing but high praise for this company! Both Pete and Dan were both very friendly, informative and knowledgeable. Their attention to detail did not go unnoticed and I appreciated their thorough explanation of every aspect of the inspection. I felt like they were treating me like a family member – looking out for me, and going above and beyond, to make sure any significant concerns were addressed. Top notch in my book. I highly recommend them and give a resounding 5 stars!!! ⭐️⭐️⭐️⭐️⭐️
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