What combination of samples is required when performing an inspection of a home?

When inspecting a home for lead risks, collecting a minimum of three wipe samples from varied locations is crucial for obtaining a comprehensive assessment. This approach allows for the detection of lead dust or residues that may be present in different areas of the home. Sampling multiple locations is particularly important because lead contamination can be unevenly distributed due to various factors such as the history of lead-based paint use, the age of the home, and the activities that take place in each room.

The collection of three wipes ensures that you gather enough data to provide a reliable analysis of lead exposure risk within the home, rather than relying on a single sample which may not accurately reflect the overall condition. This method aligns with best practices in environmental health to ensure that the assessment covers a variety of locations that might be used frequently by occupants, particularly children.

In contrast, other options might not provide a thorough examination of lead presence. Collecting just one type of sample from each room could lead to incomplete data, as it may not reflect the variability of lead levels throughout the home. Two samples per room could be insufficient for adequately assessing the risk, especially in larger or more complex homes, while five samples total may not capture enough diversity in locations to provide a reliable assessment.