Environmental Protection Agency (EPA) Lead Risk Assessor Practice Exam

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What is a characteristic of intact lead dust?

The entire surface is damaged
The entire surface is undamaged
The surface has minimal damage
The surface is contaminated

The correct answer is: The entire surface is undamaged

The characteristic of intact lead dust is that the entire surface is undamaged. This means that the dust is present on a surface that has not been compromised or deteriorated, allowing for the lead dust to remain relatively stable and contained. The presence of intact lead dust usually indicates that there hasn’t been disturbance or wear that would typically lead to increased lead exposure or the dispersion of lead particles into the environment. Understanding intact lead dust is crucial for risk assessments, as it suggests that the lead is not in a form that would easily become airborne or be ingested. This information is essential for determining appropriate management or remediation strategies in environments where lead is present, particularly in older buildings where lead-based paints may have been used. The other options relate to varying degrees of damage or contamination, which would not align with the definitions and characteristics of intact conditions.