CDPH Lead Inspector/Assessor California State Practice Exam

At what lead levels must soil be abated in a child play area?

1. 200 ppm

2. 400 ppm

3. 600 ppm

4. 800 ppm

The correct answer is: 400 ppm

Soil abatement in a child play area is governed by established safety standards aimed at protecting children from lead exposure, which can have serious health consequences. The correct threshold for soil lead levels that necessitates abatement is 400 parts per million (ppm). This level is set based on health risk assessments and research indicating that lead exposure can significantly impact children's development, particularly affecting their cognitive functions and increasing the risk for behavioral issues. The 400 ppm figure has been identified as a key reference point for intervention because exceeding this level suggests that the soil poses an unacceptable risk to children who are likely to come into direct contact with it during play. Lower lead levels, such as 200 ppm, may not trigger the same immediate concerns, as they are generally considered to be within a safer range under normal circumstances. Conversely, levels exceeding 400 ppm, such as 600 ppm or 800 ppm, indicate a more pronounced risk and typically warrant more aggressive measures to mitigate potential exposure. In summary, the 400 ppm threshold reflects a consensus in health guidance on when soil should be actively managed to protect children's health in play areas.