Which surface type is identified as a lead hazard due to chewing or mouthing?

Painted wood furniture is identified as a lead hazard due to the fact that it may have lead-based paint, which can become hazardous when children chew or mouth the surfaces. This behavior can lead to lead exposure, especially in young children who are more likely to engage in such activities. Lead paint on wooden furniture can chip or wear down, creating dust or small particles that can be ingested.

While textured wallpaper might contain lead or lead-based pigments, it is less likely to be chewed or mouthed compared to painted surfaces. Friction surfaces and metal surfaces may also present lead risks in different contexts, but they are not typically associated with the same direct oral exposure that painted wood furniture poses, particularly in environments where children frequently interact with such furniture. Thus, painted wood furniture represents a significant concern for lead exposure due to the behavioral factors of young children.