HHE Determination, Report No. HHE-78-129-544, Alvin Jacobs, DDS, Fort Lee, New Jersey, December, 1978.
NIOSH 1978 Dec:10 pages
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;
Hazard Evaluation and Technical Assistance; Field Studies
NTIS Accession No.
Hazard Evaluation and Technical Assistance Branch, NIOSH, Cincinnati, Ohio, Report No. HHE-78-129-544, 10 pages, 10 references