What action is required for accessible surfaces involved in lead hazard removal?

For accessible surfaces involved in lead hazard removal, sealing is a crucial action to ensure that lead dust and particles do not pose a risk to occupants, particularly children, and vulnerable populations. Sealing involves the application of a sealant over lead-painted surfaces after the lead hazard has been properly addressed. This step is essential because it encapsulates any remaining lead, effectively preventing exposure and minimizing the risk of lead poisoning.

Effective sealing contributes to the long-term management of lead hazards by creating a barrier that keeps lead particles from becoming airborne or coming into direct contact with individuals. This method is particularly relevant after remediation efforts, as it helps maintain a safe environment.

In the context of the other options, simply painting over surfaces does not ensure that lead hazards have been adequately managed. Immediate sampling might be necessary after remediation but is not a direct action involved in maintaining safety for accessible surfaces. Leaving the surfaces intact would not be suitable for surfaces that have been identified as lead hazards, as they require intervention to mitigate potential risks. Thus, sealing is the most appropriate and effective action to ensure safety after lead hazard removal.