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Mercury control technology assessment study, Louisiana State University, School of Dentistry, New Orleans, Louisiana, in-depth survey report for the site visit of April 27-28, 1981, report no. CT-109-17b.

Authors
Anonymous
Source
NIOSH 1982 Mar; :1-21
NIOSHTIC No.
00183558
Abstract
A visit was made to the Dental School of the Louisiana State University, in New Orleans, to study methods used to control worker exposure to mercury (7439976). Mercury arrives at this site in sealed 1 pound plastic bottles. Before use mercury was transferred to special dispensers. The preparation of the amalgam, the filling of the tooth, and the capture of waste amalgam were described. Isolation and containment of mercury was assured through the operation of the Ritter Dental Unit and a mercury spill portable vacuum cleaner. Ventilation to the clinic was achieved through a series of air handlers. The clinic was in the process of changing over to a self activating dental capsule. No personal protective equipment to protect against mercury exposures was in use. Mercury vapor was detected throughout the operatory areas at an average concentration of 0.002mg/m3. Samples taken near the floor were about the same as background levels suggesting that wide spread contamination was not occurring. Breathing zone levels ranged from a simulated mercury spill clean up procedure using a portable surgical vacuum pump. The authors conclude that mercury exposure levels are maintained below the OSHA standard of 0.1mg/m3; controls and practices in use were adequate to protect all the individuals who handle mercury.
Keywords
NIOSH-Contract; NIOSH-Survey; Contract-210-81-7107; Field-Study; Region-6; CT-109-17b; Health-care-personnel; Dentists; Mercury-poisoning; Mercury-vapors; Dental-materials; Dental-laboratories; Dentistry
CAS No.
7439-97-6
Publication Date
19820331
Document Type
Field Studies; Control Technology
Funding Type
Contract
Fiscal Year
1982
NTIS Accession No.
PB89-137293
NTIS Price
A03
Identifying No.
CT-109-17b
NIOSH Division
DPSE
Source Name
National Institute for Occupational Safety and Health
State
LA; MD
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