Final answer:
EPA protocols specify that radon measurement devices should be placed at least 20 inches above the floor. Radon testing is essential for radiation safety, as exposure can increase the risk of lung cancer, and remediation is recommended for high radon levels.
Step-by-step explanation:
When measuring radon levels in a room according to EPA protocols, the radon measurement device should be placed at least 20 inches above the floor. This is to ensure that the measurement reflects the radon concentration in the breathing zone and not the radon that may be pooling near the floor, as radon gas is heavier than air.
It is crucial to perform radon testing since this colorless, odorless gas can seep into buildings through various ways and has been identified as a significant health risk. The EPA recommends that action should be taken to mitigate radon levels when they reach or exceed 4 pCi/L, as long-term exposure to radon increases the risk of lung cancer, especially among smokers.
To ensure radiation safety, countries have established regulations limiting the amount of radon concentration in indoor air, often requiring radon assessment before property sales. In the case of high radon concentrations, remediation efforts are essential to protect public health.