What are accessible mouthable surfaces in a residential setting?

The term "accessible mouthable surfaces" refers to surfaces that are both reachable for young children and can be put in their mouths, posing a potential risk for lead exposure. In residential settings, this is typically associated with surfaces that children frequently come into contact with during play or daily activities.

Windowsills that are 5 feet or less from the floor fit this description well. They are at a height where small children can easily reach them and are often in areas where children play, making them potential sources of lead dust if lead-based paint is present.

While kitchen countertops and living room floors could also be considered accessible surfaces, counters are often too high for very young children, and floors are usually not designated specifically as mouthable surfaces, though they can indeed be sources of lead dust. Bedroom walls generally do not fit the characterization of being mouthable surfaces, as they are not typically at a height that children can reach with their mouths.

Understanding these definitions is critical for lead inspectors and risk assessors when evaluating properties for lead safety, especially in environments with children present.