.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.
The state's radon in water MEG level of 4,000 pCi/l is based on the cost of a mitigation system and consideration of the health risk reduction it will deliver to the occupants of the home. This is also true about the state's radon in air action level of 4 pCi/l.