title: Respiratory cartridge efficiency for airborne arsenic: a preliminary report.
mesh_terms: D000393:Air Pollutants; D000395:Air Pollutants, Occupational; D001151:Arsenic; D002617:Chemical Industry; D004526:Efficiency; D004781:Environmental Exposure; D011482:Protective Devices / Q000592:standards*; D012134:Respiratory Protective Devices / Q000592:standards*
chemical_list: D000393:Air Pollutants; D000395:Air Pollutants, Occupational; D001151:Arsenic