Fibrous dust particles and ferruginous bodies. Methods for quantitating them and some results from the lungs of city dwellers.
D000368:Aged; D001194:Asbestos; D004391:Dust / Q000032:analysis*; D004781:Environmental Exposure; D005260:Female; D005898:Glass / Q000032:analysis*; D006801:Humans; D007501:Iron / Q000032:analysis*; D008168:Lung / Q000032:analysis*; D008297:Male; D008722:Methods; D008875:Middle Aged; D010781:Photography; D014505:Urban Population
D004391:Dust; D001194:Asbestos; D007501:Iron