What is the definition of clearance testing in lead hazard reduction?

Clearance testing is defined as the process of evaluating and confirming that lead levels in environmental media such as air, dust, and soil have been reduced to acceptable thresholds following lead hazard reduction activities. This testing is a critical component of the safety and effectiveness of lead remediation efforts. The purpose of clearance testing is to ensure that locations where lead hazards were present are now safe for occupancy, particularly for vulnerable populations like children and pregnant women.

This type of assessment typically follows renovation, abatement, or any lead hazard control measures that were implemented. By confirming that lead levels are low, clearance testing helps to mitigate the risk of lead exposure, which can have serious health implications. Therefore, it serves not only as a compliance measure but also as a critical step in safeguarding public health.