Which surfaces are considered impact surfaces for lead testing?

Impact surfaces for lead testing are areas that are more likely to be affected by physical interactions and disturbances, which could result in lead dust or chips being generated. In this context, windows, stairs, and doors are classified as impact surfaces because they experience frequent handling, opening, and closing, creating friction that can lead to lead exposure. These areas are typically high-traffic, and regular use increases the risk of deteriorating lead paint or other lead sources, potentially releasing lead particles into the environment.

Walls and ceilings, while important surfaces for lead testing, do not see the same degree of impact or disturbance as windows, stairs, and doors. Roofs and gutters are generally outside the scope of interior lead exposure assessments, and while floors and basements are relevant for lead testing, they do not have the same elevated risk associated with impact surfaces that directly influence human activity. Thus, focusing on surfaces that are frequently impacted, such as those found in everyday pathways and common areas, is crucial for effective lead testing and risk assessments.