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Distribution of waste anesthetic gases in the operating room air.

Authors
Piziali-RL; Whitcher-C; Sher-R; Moffat-RJ
Source
Anesthesiology 1976 Nov; 45(5):495-500
NIOSHTIC No.
00094640
Abstract
Concentrations of nitrous-oxide (10024972) and halothane (151677) were measured at stations throughout one operating and one delivery room. No personnel were present. Air conditioning flow rates and patterns and the height of the anesthetic gas source were varied. Analyzers were set to measure gas concentrations at the air conditioning exhaust vent. Air flow patterns dominated anesthetic gas distribution and buoyancy effects were negligible. Venting waste gases at the floor did not reduce personnel exposure significantly. Areas of high concentrations existed but their occurrences and locations varied with air flow patterns. The results indicate that the exhaust grill is the best location for a single measurement of the average room concentration. The authors note that recirculating air conditioning systems reduce energy costs; but only the nonrecirculatory portion of the air exchanges reduces waste gas concentrations.
Keywords
NIOSH-Publication; NIOSH-Contract; Contract-099-73-0073; Health-services; Medical-personnel; Anesthesia; Hospitals; Gases; Air-contaminants; Sampling-methods; Ventilation-systems
CODEN
ANESAV
CAS No.
10024-97-2; 151-67-7
Publication Date
19761101
Document Type
Journal Article
Funding Type
Contract
Fiscal Year
1977
NTIS Accession No.
NTIS Price
Identifying No.
Contract-099-73-0073
Issue of Publication
5
ISSN
0003-3022
Source Name
Anesthesiology
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