Structural defects contributing to lead hazards may include which of the following?

Deteriorating structural components are a significant contributor to lead hazards because they can lead to the generation of lead dust or chips. For example, if paint that contains lead is on these components and they begin to peel, crack, or decay, they can release hazardous lead particles into the environment. Children and pregnant women are particularly vulnerable to the harmful effects of lead exposure, which can occur if lead dust is inhaled or ingested after settling on surfaces or being transferred from hands to mouths.

In contrast, unpainted surfaces are usually considered safer if they don't contain lead-based paint, while new construction materials should be free of lead if they are compliant with current regulations. Vinyl siding installations, when done correctly and in good condition, also do not typically create lead hazards. Thus, the condition of structural components directly impacts lead safety in environments where lead-based paints were historically used.