Environmental Protection Agency (EPA) Lead Risk Assessor Practice Exam

What is the HUD clearance level for floors in relation to lead dust?

1. 50 ug/ft²

2. 5 ug/ft²

3. 10 ug/ft²

4. 100 ug/ft²

The correct answer is: 10 ug/ft²

The HUD clearance level for floors in relation to lead dust is set at 10 micrograms per square foot (ug/ft²). This specific threshold is significant because it is based on the need to protect occupants, particularly children and pregnant women, from the harmful effects of lead exposure, which can include cognitive and developmental issues. Setting the clearance level at 10 ug/ft² reflects a precautionary approach, acknowledging that even low levels of lead dust can pose health risks. This level is intended to ensure that any lead abatement or remediation activities meet appropriate safety standards before a space can be reoccupied. Understanding this clearance level is essential for lead risk assessors and contractors as they plan and conduct their work. It also underscores the importance of following HUD guidelines in maintaining safe living environments, particularly where lead paint has been a concern in older buildings.