On June 17, 2020, EPA announced a proposal to reduce the amount of lead that can remain in dust on floors and window sills after lead removal activities to protect children from the harmful effects of lead exposure. The agency’s proposal would lower the amount of lead that can remain in dust on floors and window sills after lead removal activities from 40 micrograms (µg) of lead in dust per square foot (ft2) to 10 µg/ft2 for floor dust and from 250 µg/ft2 to 100 µg/ft2 for window sill dust.

 

Read more >> https://www.epa.gov/lead/hazard-standards-and-clearance-levels-lead-paint-dust-and-soil-tsca-sections-402-and-403