.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.
This followed up with other neighbor's home having levels of 1800, 2500 and 2748 pCi/l. One home had a level that was 3,715 pCi/l. This home was the highest indoor radon level ever measured in Pennsylvania. We were able to reduce the radon levels in this home to less than 3.0 pCi/l. In 2016 a home in the development measured around 2200 pCi/l with the passive system installed by the builder and over 6000 pCi/l when the passive system was capped.