What is the dust sample clearance value for floors according to EPA regulations?

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Multiple Choice

What is the dust sample clearance value for floors according to EPA regulations?

Explanation:
After lead-based paint work, floors must be cleaned to a dust lead level that is considered safe for occupancy. The standard floor dust clearance value set by EPA is 40 μg/ft2. This means wipe samples collected from the cleaned floor should show lead levels at or below 40 micrograms per square foot to pass clearance. If the results exceed this value, additional cleaning and re-testing are required until the floor meets the standard, reducing the risk of exposure. The other numbers relate to different surfaces (for example, window sills have a higher allowable level), so they don’t apply to floors.

After lead-based paint work, floors must be cleaned to a dust lead level that is considered safe for occupancy. The standard floor dust clearance value set by EPA is 40 μg/ft2. This means wipe samples collected from the cleaned floor should show lead levels at or below 40 micrograms per square foot to pass clearance. If the results exceed this value, additional cleaning and re-testing are required until the floor meets the standard, reducing the risk of exposure. The other numbers relate to different surfaces (for example, window sills have a higher allowable level), so they don’t apply to floors.

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