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

What is the acceptable range for a lead dust spike?

1. 10 ug - 500 ug

2. 50 ug - 1000 ug

3. 100 ug - 2000 ug

4. 200 ug - 3000 ug

The correct answer is: 50 ug - 1000 ug

The acceptable range for a lead dust spike is generally set to reflect a level that can accurately assess lead dust presence without exceeding the threshold that could lead to regulatory action or health concerns. The range of 50 micrograms to 1000 micrograms is considerate of the potential for airborne lead dust exposure in environments where lead-based paint could be present. This range is supported by regulatory guidelines that aim to protect public health, particularly for vulnerable populations such as children, who are most at risk for lead exposure. Establishing an effective spike range is important for ensuring that the testing can identify lead dust levels that require further action or remediation. Values within this specific range allow for the detection of lead dust that may be concerning while also considering practical testing limitations and sensitivity. Higher ranges could indicate either a less reliable measurement given the real-world low-level exposure scenarios often encountered or pose risks of false positives that might not accurately reflect typical residential settings where lead attributes are being assessed.