If a certified Risk Assessor finds a significantly higher lead concentration at one sample site, what is the recommended action?

When a certified Risk Assessor detects a significantly higher lead concentration at a specific sample site, a thorough investigation of the area becomes necessary to understand the source of the lead. By examining the door system for damaged paint, the assessor can identify potential lead hazards. Door frames and surfaces often experience wear and tear that can lead to the deterioration of lead-based paint, especially in residential properties built before 1978, when lead-based paints were commonly used.

This approach allows the assessor to gather critical information that can inform remediation strategies. Addressing painted surfaces that may be peeling or chipping is essential for managing lead exposure risks. Observing such physical conditions can help determine whether the elevated lead levels could pose a health risk to individuals in the vicinity, necessitating further action or remediation.

The other options do not adequately address the immediate concern of a high lead concentration. Collecting air samples might provide some contextual information about airborne lead levels, but it does not target the specific potential source of the contamination. Assuming a lab error without investigating the actual conditions would be premature, as lead concentration can vary spatially due to several factors. Having housekeeping staff sweep the area could inadvertently disturb lead dust without addressing the underlying problem of lead paint deterioration. Thus, directly examining the relevant structures