What is the lead dust clearance limit for floors or carpet?

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Prepare for the US EPA Model Lead Inspector Test. Study with flashcards and multiple choice questions. Each question includes hints and explanations for better understanding. Ace your exam!

Multiple Choice

What is the lead dust clearance limit for floors or carpet?

Explanation:
After lead hazard work, you perform clearance testing to ensure surfaces are clean enough to protect occupants. For floors or carpet, the accepted clearance limit is 40 ug per square foot. This means wipe sampling of floor surfaces should show no more than 40 micrograms of lead per square foot; if results exceed that, re-cleaning is required and another wipe test is done until the floor meets the limit. Other surfaces have different limits (for example, interior window sills or window troughs have higher or different thresholds), but the 40 ug/ft² standard specifically applies to floors and carpet.

After lead hazard work, you perform clearance testing to ensure surfaces are clean enough to protect occupants. For floors or carpet, the accepted clearance limit is 40 ug per square foot. This means wipe sampling of floor surfaces should show no more than 40 micrograms of lead per square foot; if results exceed that, re-cleaning is required and another wipe test is done until the floor meets the limit. Other surfaces have different limits (for example, interior window sills or window troughs have higher or different thresholds), but the 40 ug/ft² standard specifically applies to floors and carpet.

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