title: FIELD TRIALS WITH THE HEXHLET AND CONICYCLE AIRBORNE DUST SAMPLERS AND THE STANDARD AND LONG RUNNING THERMAL PRECIPITATORS.
mesh_terms: D000397:Air Pollution; D002623:Chemistry Techniques, Analytical; D003032:Coal Mining; D004391:Dust; D006801:Humans; D009787:Occupational Medicine; D012420:Running
chemical_list: D004391:Dust
keywords: AIR POLLUTION; CHEMISTRY, ANALYTICAL; COAL MINING; DUST; INDUSTRIAL MEDICINE