Environmental Protection Agency (EPA) Model Lead Based Paint Risk Assessor Practice Test

How many rooms does the EPA recommend a risk assessor select for dust sampling as a minimum?

1. 1 room

2. 2 rooms

3. 4 rooms

4. At least 3 rooms

The correct answer is: At least 3 rooms

The recommendation from the EPA for a risk assessor to conduct dust sampling in at least three rooms is based on the need for a comprehensive assessment of lead exposure potential within a residence or building. By sampling multiple rooms, the risk assessor can gather a more representative understanding of lead dust prevalence throughout the property. This is important because lead hazards may not be evenly distributed, and certain areas—such as those frequently accessed or used for activities that may disturb lead-based paint—could present higher risks. Sampling in multiple rooms enhances the ability to identify areas where lead dust may accumulate and helps inform appropriate remediation strategies. Additionally, focusing on key rooms often includes evaluating living areas, kitchens, and places where children play, as these are typically higher risk environments. Thus, the minimum of three rooms balances the need for adequate sampling with practical considerations in assessing lead exposure risk effectively.