title: The determination of sulfur, lead, and silicon in atmospheric aerosols: an application of X-ray fluorescence and confined-spot paper techniques.
mesh_terms: D000397:Air Pollution / Q000032:analysis*; D055598:Chemical Phenomena; D002621:Chemistry; D005453:Fluorescence; D007854:Lead / Q000032:analysis*; D008851:Micropore Filters; D011827:Radiation; D012825:Silicon / Q000032:analysis*; D013455:Sulfur / Q000032:analysis*
chemical_list: D007854:Lead; D013455:Sulfur; D012825:Silicon