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Health hazard evaluation determination report: HHE-78-129-544, Alvin Jacobs, DDS, Fort Lee, New Jersey.
Cincinnati, OH: U.S. Department of Health, Education, and Welfare, Public Health Service, Centers for Disease Control, National Institute for Occupational Safety and Health, HHE 78-129-544, 1978 Dec; :1-10
Area and personal breathing zone samples for nitrous oxide (10024972) were taken at a dental office (SIC-8021) in Fort Lee, New Jersey on October 5, 1978. The evaluation was requested by the dentist on behalf of 3 affected employees. Breathing zone concentrations of nitrous-oxide ranging up to 430 parts per million (ppm) were measured during dental work. Mercury (7439976) concentrations up to 0.02 milligrams per cubic meter (mg/m3) also were detected. The recommended exposure concentrations for nitrous oxide and mercury are 50ppm and 0.1mg/m3, respectively. The author concludes that a health hazard exists due to nitrous-oxide exposure. Recommendations include elimination of nitrous-oxide leaks, modifications to the exhaust system, periodic urinalysis for all employees, and prompt and proper cleaning of mercury spills.
NIOSH-Author; HHE-78-129-544; NIOSH-Health-Hazard-Evaluation; Gases; Hazard-Confirmed; Region-2; Nitrous-oxides; Air-contamination; Vapors; Leak-prevention; Urinalysis; Sanitation; Author Keywords: Waste Anesthetic Gas (Nitrous Oxide), Mercury, Scavenging System
Field Studies; Health Hazard Evaluation
NTIS Accession No.
National Institute for Occupational Safety and Health
Page last reviewed: May 5, 2020
Content source: National Institute for Occupational Safety and Health Education and Information Division