World E.P.A. Proposes Tighter Limits on Lead Dust in Homes and Child Care Facilities July 12, 2023July 12, 2023Coral DavenportComments Off on E.P.A. Proposes Tighter Limits on Lead Dust in Homes and Child Care Facilities Under the proposed rules, any amount of lead dust in floors and window sills would qualify as “hazardous” and require abatement.