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Health hazard evaluation report: HHE-80-249-833, Robert W. Olson, D.D.S., Conifer, Colorado.
Cincinnati, OH: U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control, National Institute for Occupational Safety and Health, HHE 80-249-833, 1981 Mar; :1-9
Environmental and personal air samples were analyzed for nitrous- oxide (10024972) and mercury (7439976) at a private dental office (SIC-8021), in Conifer, Colorado on January 8, 1981. The evaluation was requested by the dentist on behalf of an unspecified number of employees. Direct reading area samples revealed breathing zone nitrous-oxide concentrations exceeding 1000 parts per million (ppm) during anesthetic administration, and background concentrations of 200ppm approximately 1 hour after administration. The NIOSH recommended standard for nitrous-oxide is 25ppm. Mercury concentrations were well below the OSHA standard of 0.1 milligram per cubic meter. The author concludes that a health hazard from nitrous-oxide does exist at this office, and recommends the installation of a nitrous-oxide scavenging system, worker education, ventilation improvements, and routine maintenance of all anesthetic and suction equipment.
NIOSH-Author; HHE-80-249-833; NIOSH-Health-Hazard-Evaluation; Hazards-Confirmed; Region-8; Air-sampling; Anesthetics; Health-care-facilities; Health-surveys; Author Keywords: Offices of Dentists; nitrous oxide; dental operatories; waste anesthetic gas; mercury
Field Studies; Health Hazard Evaluation
NTIS Accession No.
National Institute for Occupational Safety and Health
Page last reviewed: December 18, 2020
Content source: National Institute for Occupational Safety and Health Education and Information Division