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

What is the significance of a dust wipe measurement in lead risk assessment?

1. It indicates water contamination levels

2. It helps determine lead levels in paint

3. It estimates the risk of lead exposure

4. It assesses air quality

The correct answer is: It estimates the risk of lead exposure

In lead risk assessment, a dust wipe measurement is significant because it estimates the risk of lead exposure. This method involves collecting samples from surfaces in homes or buildings that may have been contaminated with lead dust, usually from deteriorating lead-based paint or from other sources of lead. By analyzing these samples, assessors can determine the concentration of lead present in the dust. High levels of lead in dust can indicate a risk of exposure, especially for young children and pregnant women, who are particularly vulnerable to the harmful effects of lead. Understanding the concentration of lead in dust allows professionals to make informed decisions about necessary remediation actions to protect residents' health. Therefore, the dust wipe measurement plays a crucial role in assessing the potential risk associated with lead in the environment.