Environmental Protection Agency (EPA) Lead Risk Assessor Practice Exam

What is the HUD clearance level for dust samples collected from window sills?

1. 100 ug/ft2

2. 125 ug/ft2

3. 150 ug/ft2

4. 175 ug/ft2

The correct answer is: 125 ug/ft2

The HUD clearance level for dust samples collected from window sills is set at 125 micrograms per square foot (ug/ft²). This level is established to ensure that lead dust, which can pose serious health risks, is kept to a minimum, particularly in environments where children may be exposed. The specified clearance level is part of broader efforts to reduce lead exposure in residential settings, especially in homes built before 1978 when lead-based paints were commonly used. By adhering to this clearance level, it helps to protect vulnerable populations, particularly children, who are at greater risk of lead poisoning. The choice of 125 ug/ft² reflects a balance between practical cleaning efforts and the need to maintain a safe living environment. Dust levels above this threshold may necessitate further remediation or cleaning efforts to ensure that lead hazards are adequately addressed, thereby safeguarding health and well-being. Understanding this guideline is crucial for conducting thorough lead risk assessments and ensuring compliance with HUD regulations.