What is the EPA Lead in Dust Criteria for Floors during a Lead Hazard Screen?

The correct criteria for lead in dust on floors during a Lead Hazard Screen is 10 micrograms per square foot (ug/ft²). This standard is established by the Environmental Protection Agency (EPA) as part of its guidelines to determine the presence of lead hazards in residential settings. The 10 ug/ft² threshold helps to identify potential risks to children and other vulnerable populations who may be exposed to lead dust.

This criterion is significant as it reflects a balance between safety and practical detection, ensuring that environments where children play are adequately monitored for lead exposure risks. When levels exceed this threshold, it triggers the need for further investigation and potential remediation to mitigate any health risks associated with lead poisoning.