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

What is the HUD standard for a "dangerous level of lead" in household dust on an uncarpeted floor surface?

1. 10 micrograms/wipe

2. 5 micrograms/wipe

3. 15 micrograms/wipe

4. 20 micrograms/wipe

The correct answer is: 5 micrograms/wipe

The correct answer identifies that the U.S. Department of Housing and Urban Development (HUD) standard for a "dangerous level of lead" in household dust on an uncarpeted floor surface is set at 5 micrograms per wipe. This standard is significant in assessing lead exposure risks, especially in environments where young children may be present, as they are particularly vulnerable to the effects of lead poisoning. Lead dust can accumulate in homes, and when children crawl or play on floors, they can inadvertently ingest lead particles. Thus, keeping the lead dust levels below this threshold is critical for protecting public health, particularly in homes that may have lead-based paint or other lead hazards. This specific standard helps to ensure that exposure to lead from household dust remains at manageable levels, supporting initiatives to reduce lead poisoning and promoting safer living environments. The numerical value of 5 micrograms serves as a guideline for risk assessors and remediation professionals to make determinations about the safety of residential environments.