37
Includes: Audio, Video, Graphics, and 1 Article
37
Includes: Audio, Video, Graphics, and 1 Article
37
Includes: Audio, Video, Graphics, and 1 Article
A nationwide survey of radon levels in schools estimates that nearly one in five has at least one schoolroom with a short-term radon level above the action level of 4 pCi/L (picoCuries per liter) - the level at which EPA recommends that schools take
action to reduce the measurement.
14