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45030. Area code: 513: FIPS code: 39-33852 [3] GNIS feature ID: 1086214 [1] Website: www.harrisontownshipohio.com: Harrison Township is one of the twelve townships of ...
Maps of average radon levels in houses are available, to assist in planning mitigation measures. [8] While high uranium in the soil/rock under a house does not always lead to a high radon level in air, a positive correlation between the uranium content of the soil and the radon level in air can be seen.
More than 26% of Erie County homes tested for radon between 2010 and 2020 have detected high levels of the odorless, colorless, tasteless, and deadly gas.
Not all granitic regions are prone to high emissions of radon. Being an unreactive noble gas, it usually migrates freely through faults and fragmented soils, and may accumulate in caves or water. Due to its very small half-life (four days for 222 Rn), its concentration decreases very quickly when the distance from the production area increases.
Very high radon concentrations (>1000 Bq/m 3) have been found in houses built on soils with a high uranium content and/or high permeability of the ground. If levels are 20 picocuries radon per liter of air (800 Bq/m 3 ) or higher, the home owner should consider some type of procedure to decrease indoor radon levels.
According to the United States Census Bureau, the city of Harrison has a total area of 4.96 square miles (12.85 km 2), of which 4.92 square miles (12.74 km 2) are land and 0.04 square miles (0.10 km 2) are water. [9] Harrison is adjacent to Miami Whitewater Forest, the second park to join the Hamilton County Park District in 1949.
The highest background radiation in an inhabited area is found in Ramsar, primarily due to the use of local naturally radioactive limestone as a building material. The 1000 most exposed residents receive an average external effective radiation dose of 6 mSv (600 mrem) per year, six times the ICRP recommended limit for exposure to the public ...
A typical radon test kit Fluctuation of ambient air radon concentration over one week, measured in a laboratory. The first step in mitigation is testing. No level of radiation is considered completely safe, but as it cannot be eliminated, governments around the world have set various action levels to provide guidance on when radon concentrations should be reduced.