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Technical Assistance Report No. HHE-80-102-764, Randal Egbert, Jr., D.D.S., Milford, Ohio.

Authors
Schick-W
Source
NIOSH 1980 Nov:6 pages
Link
NIOSHTIC No.
00111753
Abstract
Personal air samples from breathing zones and area samples were analyzed and leak tests were conducted over accessible portions of the analgesia system at a dental office (SIC-8021) in Milford, Ohio, on September 4, 1980, to evaluate the effectiveness of a scavenging system for use during administrations of nitrous-oxide (10024972) (N2O). The dentist was exposed to time weighted average N2O concentrations ranging from 23 to 250 parts per million. The dentists' assistant was exposed to N2O concentrations ranging from 16 to 30ppm. Area air samples ranged from 3 to 36ppm. Investigations before the installation of a scavenging scheme had indicated that all personnel were exposed to N2O concentrations ranging from 180 to 1,000ppm, while area sample concentrations of N2O ranged from 180 to 525 ppm. The NIOSH recommended environmental criteria for N2O exposure is 50ppm. The author concludes that the scavenging system reduced N2O exposures in the dental office. He recommends that the analgesia system be made leakproof and the proper amount of suction be applied to the scavenging system.
Keywords
NIOSH-Author; NIOSH-Technical-Assistance-Report; TA-80-102-764; Hazards-Confirmed; Region-5; Health-surveys; Dentistry; Medical-personnel; Workplace-studies; Air-contamination; Gases; Control-methods;
CAS No.
10024-97-2;
Publication Date
19801101
Document Type
Hazard Evaluation and Technical Assistance; Field Studies
Fiscal Year
1981
NTIS Accession No.
PB82-151010
NTIS Price
A02
Identifying No.
TA-80-102-764
NIOSH Division
DSHEFS;
SIC Code
8021;
Source Name
Department of Health and Human Services, Public Health Service, Centers for Disease Control, NIOSH, Cincinnati, Ohio, 6 pages, 2 references
State
OH;
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