What are considered impact surfaces?

Impact surfaces are defined as those areas that experience repeated physical stress or force, which can lead to the deterioration of materials and potentially the release of lead dust or chips if lead-based paint is present. Doorframes and baseboards are classic examples of these surfaces because they often endure mechanical wear from opening and closing doors and the friction of movement near foot level. This consistent stress can cause paint to chip or deteriorate more rapidly in these areas, increasing the risk of exposure to lead contaminants.

The other options do not align with the definition of impact surfaces. Surfaces exposed to direct sunlight can degrade due to UV exposure but are not considered impact surfaces since they do not face repeated physical stress. Locations with high foot traffic may be prone to wear, but they are not specifically defined as impact surfaces unless they are also subject to the kind of repeated, focused force like doorframes. Finally, surfaces that have been painted recently may not have yet undergone any wear or damage, and therefore do not fit the definition of impact surfaces.