.pld Extension - List of programs that can open .pld files In the following table, you can find a list of programs that can open files with .pld extension.This list is created by collecting extension information reported by users through the 'send report' option of FileTypesMan utility.
According to a national residential radon survey completed in 1991, the average indoor radon level in the United States is 1.3 picocuries per liter (pCi/L). The average outdoor level is about 0.4 pCi/L. Excessive radon levels have been found in all of the 50 states.
Dose: 200 mrem per year. Radon is a radioactive gas that you canât see or smell, but it may be in your home. It often creeps in through the floor or walls from natural decay of uranium in the ground, and gets trapped within the building; it can also be present in construction materials.