.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.
Long-term radon kits are more accurate. The radon level can vary significantly from day to day. Sampling the level for 90 days or more gives you a more accurate idea of the average radon level in your home. If you need fast results, only one short-term radon kit was accurate enough for us to recommend.