Final answer:
According to EPA protocols, a radon measurement device should be placed about 20 inches below the ceiling of a room.
Step-by-step explanation:
The minimum distance a radon measurement device should be below the ceiling of the room is typically 20 inches, according to EPA protocols. This is because radon gas is heavier than air and tends to accumulate near the ground. By placing the measurement device at a specific distance below the ceiling, it ensures accurate readings of the radon concentration in the room.
EPA guidelines state that radon measurement devices should be placed at least 20 inches below the ceiling. Accurate readings are crucial as radon is denser than air and more concentrated at lower levels. Homes should be remediated if radon levels reach or exceed 4 pCi/L.
According to EPA guidelines, radon measurement devices should be placed at least 20 inches below the ceiling. This is to ensure accurate readings, as radon tends to be more concentrated at lower levels in buildings due to it being denser than air. Notably, the EPA recommends that homes be fixed when radon levels reach or exceed 4 pCi/L due to the health risks associated with long-term exposure.