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Assessment of Nitrous Oxide Exposure in a Pediatric Dentistry
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2010/07/01
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Source: Cincinnati, OH: U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, HETA 2005-0157-3110, 2010 Jul; :1-17
[PDF-4.21 MB]
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Description:On March 2, 2005, NIOSH received a management request for an HHE at Children's Dentistry at Hamilton Mill in Dacula, Georgia. The request was submitted in response to employee concerns that continued exposure to N2O may result in infertility and spontaneous abortions. Seventeen task-based and eighteen full-shift PBZ air samples for N2O were collected on two dentists and eight dental assistants during the survey. One of the full-shift samples, collected on a dentist, exceeded the NIOSH REL of 25 ppm as a TWA. Several task-based samples also exceeded the NIOSH REL. Additionally, two full-shift PBZ samples were collected on receptionists in the reception area; neither of these samples contained detectable concentrations of N2O. The sampling was done over 2 days using passive sampling badges. NIOSH engineers reviewed drawings of the clinic's ventilation system. The building ventilation system in place during the NIOSH evaluation did not supply adequate outdoor air to the treatment rooms. NIOSH physicians invited employees to participate in confidential medical interviews. Employee concerns primarily stemmed from the potential for N2O to cause infertility, rather than from any adverse health effects being experienced when the HHE request was made. Factors that affect exposures include work practices, the amount of N2O administered to patients, and the effectiveness of engineering controls.
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Pages in Document:24 pdf pages
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Contributor:Evans, Stefanie M.;Galloway, Ellen;Safran, Elizabeth;Smith, Robin;
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NIOSHTIC Number:20037642
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NTIS Accession Number:PB2011-100008
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Citation:NIOSH [2010]. Health hazard evaluation report: assessment of nitrous oxide;exposures in a pediatric dentistry, Dacula, GA. By Achutan C, Radke M, Garcia A,;Mead K, King B. Cincinnati, OH: U.S. Department of Health and Human Services,;Centers for Disease Control and Prevention, National Institute for Occupational;Safety and Health, NIOSH HETA No. 2005-0157-3110,;
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Federal Fiscal Year:2010
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Peer Reviewed:False
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Resource Number:HETA-2005-0157-3110
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