title: On-filter analysis of quartz in respirable coal dust by infrared absorption and X-ray diffraction.
mesh_terms: D003032:Coal Mining; D004391:Dust / Q000032:analysis*; D005374:Filtration; D008722:Methods; D009787:Occupational Medicine; D010316:Particle Size; D012822:Silicon Dioxide / Q000032:analysis*; D013055:Spectrophotometry, Infrared; D014481:United States; D014961:X-Ray Diffraction
chemical_list: D004391:Dust; D012822:Silicon Dioxide