title: Environmental asbestos concentrations in the United States.
abstract: Measurements were made of chrysotile concentrations in buildings with asbestos-lined return air plenums, in buildings with damaged asbestos surfacing material, in the houses of asbestos workers, and around buildings while asbestos-containing fireproofing material was being sprayed on steelwork. The data obtained demonstrate significant environmental contamination by asbestos: 43/89 air samples exceeded 50 ng/m3, although only 2/89 samples exceeded 1000 ng/m3. These findings should prompt appropriate control or remedial action.
mesh_terms: D000388:Air / Q000032:analysis*; D000393:Air Pollutants / Q000032:analysis*; D001194:Asbestos / Q000032:analysis*; D003252:Construction Materials; D006801:Humans; D009784:Occupational Diseases / Q000517:prevention & control; D014481:United States
chemical_list: D000393:Air Pollutants; D001194:Asbestos