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Health hazard evaluation report: HETA-88-312-L1978, Veterans Administration Medical Center, Clarksburg, West Virginia.

Authors
Salisburg-S; Daniels-W
Source
NIOSH 1989 Jul; :1-21
NIOSHTIC No.
00190671
Abstract
In response to a request from the management and employees of the Veterans Administration (VA) Medical Center, and the U.S. Attorney's Office, a study was made of possible hazardous working conditions at the VA facility located in Clarksburg, West Virginia. Specific concern was directed toward a nitrous-oxide (10024972) (N2O) leak which had gone undetected for over 6 months. The piping system, which had been deactivated, was reactivated for the investigation. N2O concentrations reaching 10 to 12 parts per million (ppm) were detected in the hallway near the leak using direct reading instruments and data recording equipment. This was below the NIOSH recommended exposure limit of 25ppm. Concentrations in the offices and operating rooms were less than 4ppm. In three of four anesthetic carts tested, low pressure leaks were detected. On one N2O wall outlet a high pressure leak was detected when connected to a cart's high pressure hose. During actual surgical procedures, testing of the operating room air found no exposures exceeding the 25ppm limits for N2O and no exposures exceeding the halogenated anesthetic vapor limits of 0.5ppm. The authors conclude that there was no evidence that the leaking piping system would have produced exposure to N2O above the proposed 8 hour time weighted average threshold limit value of 50ppm. The authors recommend correction of the leakage from respirometer slip ring connectors used on the anesthetic carts, and leak testing and repair of high pressure wall outlets.
Keywords
NIOSH-Author; NIOSH-Health-Hazard-Evaluation; NIOSH-Technical-Assistance-Report; HETA-88-312-L1978; Region-3; Hazard-Unconfirmed; Anesthesia; Anesthetics; Health-care-personnel; Air-quality-monitoring; Equipment-reliability; Indoor-air-pollution; Indoor-environmental-quality
CAS No.
10024-97-2
Publication Date
19890701
Document Type
Hazard Evaluation and Technical Assistance; Field Studies
Fiscal Year
1989
NTIS Accession No.
PB90-129388
NTIS Price
A03
Identifying No.
HETA-88-312-L1978
NIOSH Division
DSHEFS
Source Name
National Institute for Occupational Safety and Health
State
WV; OH
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