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The radon hazard category shows radon potential, radon average, and geologic units that could be associated with higher radon risk. Radon potential and averages were compiled as part of the Nevada Radon Education Program and results are based on independently tested homes from 1989 through 2015, not scientific sampling. Radon levels are measured in pCi/l and are calculated according to zip code. The geologic units layer features certain rock types, including granite and shale, that commonly have higher than average uranium content and are associated with elevated radon concentrations. This layer illustrates where granite and shale are exposed at the ground surface; however, elevated radon levels can occur in numerous other geologic settings. Site specific testing is the only way to determine local radon concentrations. |