title: Pollution in operating theatres: Part 2: The solution.
mesh_terms: D000397:Air Pollution / Q000032:analysis / Q000517:prevention & control*; D000768:Anesthesia, General / Q000592:standards; D000769:Anesthesia, Inhalation / Q000295:instrumentation; D000777:Anesthetics / Q000032:analysis; D006221:Halothane / Q000032:analysis; D009609:Nitrous Oxide / Q000032:analysis; D009873:Operating Rooms
chemical_list: D000777:Anesthetics; D009609:Nitrous Oxide; D006221:Halothane