Environmental Protection Agency (EPA) Lead Risk Assessor Practice Exam

Which exterior soil areas require testing for lead?

1. All covered areas

2. Area directly adjacent to the building

3. Paved pathways

4. Common play areas

The correct answer is: Area directly adjacent to the building

Testing for lead in exterior soil areas is particularly crucial in locations where lead exposure risk is heightened due to proximity to potential lead sources, such as deteriorating paint, lead plumbing, or past industrial activities. The area directly adjacent to the building is often a primary focus for lead testing because it can accumulate lead particles that have settled from the building's exterior or from the surrounding environment. This area is likely to have the highest concentration of lead due to possible sources including lead-based paints and dust, which can easily migrate to soil close to residential structures, creating a higher risk for children and pets who may play or explore nearby. While the other choices can also be relevant, they do not prioritize the immediate risk associated with lead exposure. For instance, covered areas may be less of a concern since they do not expose soil directly to the environment. Paved pathways generally do not allow for soil exposure and movement of lead particles. Common play areas are important as well, but they could be situated further from the main sources of lead contamination, thus not warranting a primary focus for testing without specific indicators of risk.