Environmental Protection Agency (EPA) Model Lead Based Paint Risk Assessor Practice Test

In lead testing, what is the acceptable lead level for dust samples collected from window sills as per HUD standards?

1. 25 ug/ft2

2. 50 ug/ft2

3. 15 ppb

4. 0.5%

The correct answer is: 25 ug/ft2

The acceptable lead level for dust samples collected from window sills according to HUD standards is indeed set at 25 micrograms per square foot (ug/ft2). This threshold is established to protect public health, particularly for children who are more susceptible to the harmful effects of lead exposure. Dust is a major route through which lead can enter the human body, and window sills are common areas where lead dust can accumulate, especially in older buildings where lead-based paints may have been used. By setting this specific limit, HUD aims to minimize the risk of lead poisoning, ensuring that living environments are safer for families, particularly those with young children. The value of 25 ug/ft2 helps to identify when remedial actions may be necessary to mitigate lead hazards, thus contributing to healthier indoor environments.