What is the lead dust level considered acceptable for interior sills during testing?

The acceptable lead dust level for interior sills during testing is recognized as less than 250 µg/ft². This standard is established to ensure that lead exposure from dust in residential settings, particularly in homes with children or pregnant women, is minimized. Interior sills are critical areas to monitor because they can accumulate lead dust from chipped or peeling lead-based paint, which can pose serious health risks when ingested or inhaled, especially for young children.

Maintaining lead dust levels below this threshold is vital for creating a safe living environment. Levels above this standard can indicate a potential health risk, prompting necessary remediation to reduce the lead presence. Hence, less than 250 µg/ft² stands as a key benchmark for assessing lead safety in homes.