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

What is the acceptable lead level for lead in soil according to EPA guidelines?

1. 200 ppm

2. 400 ppm

3. 1000 ppm

4. 1500 ppm

The correct answer is: 400 ppm

The acceptable lead level for lead in soil, according to EPA guidelines, is set at 400 parts per million (ppm). This standard aims to protect public health, particularly for children who are most vulnerable to the harmful effects of lead exposure. The 400 ppm threshold is based on extensive research and risk assessments that consider how lead can impact health and development, especially through soil ingestion or dust inhalation. By establishing this limit, the EPA recognizes that lower levels of lead in soil can still pose a potential risk, particularly in residential areas where children play or where gardening may occur. The guideline serves as a proactive measure to prevent lead exposure, aligning with public health goals aimed at reducing childhood lead poisoning. In contrast, the other options represent levels of lead in soil that exceed this accepted standard and could potentially lead to increased health risks. Understanding and adhering to the 400 ppm guideline is crucial for risk assessors, environmental professionals, and the public to ensure safe living environments and effective interventions for lead exposure reduction.