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HHE Report No. HETA-87-060-1825, Colorado State University, Fort Collins, Colorado.

Authors
Gunter-BJ; Daniels-WJ; Hales-T
Source
NIOSH 1987 Aug:13 pages
NIOSHTIC No.
00175428
Abstract
In response to a request from the Director, Environmental Health Services, Colorado State University, Fort Collins, an evaluation was made of chemical exposures in the veterinary histopathology laboratory (SIC-8071) at the university. Tissue fixing and histology laboratories were involved. Analyses were made of general room air samples and breathing zone samples for toluene (108883), xylene (1330207), acetone (67641), and ethanol (64175). Two of six samples analyzed contained toluene at 1.8 and 0.6mg/m3. Four samples contained xylene: 1.6, 1.8, 2.0, and 3.9mg/m3. No acetone was detected in any sample. All samples contained ethanol ranging from 1.8 to 35.7mg/m3. Medical studies of histopathology technicians and employees in the laboratories indicated no evidence of work related injury or illness. All exposure levels were significantly below NIOSH evaluation criteria (toluene 375mg/m3, xylene 435mg/m3, acetone 590mg/m3, and ethanol 1900mg/m3; time weighted averages). Review of exhaust laboratory hoods and work station hoods indicated that improvements in this area were needed. The authors recommend adjustments to intake air handlers so that each laboratory would have an adequate make up air volume to compensate for exhausted air. Biological monitoring of employees is recommended in order to estimate solvent exposures.
Keywords
NIOSH-Author; NIOSH-Health-Hazard-Evaluation; HETA-87-060-1825; Region-8; NIOSH-Technical-Assistance-Report; Hazard-Unconfirmed; Laboratory-workers; Organic-solvents; Air-sampling; Inhalants; Medical-sciences;
CAS No.
108-88-3; 1330-20-7; 67-64-1; 64-17-5;
Publication Date
19870801
Document Type
Hazard Evaluation and Technical Assistance;
Fiscal Year
1987
NTIS Accession No.
PB88-162243
NTIS Price
A03
Identifying No.
HETA-87-060-1825
NIOSH Division
DSHEFS;
SIC Code
8071;
Source Name
Hazard Evaluations and Technical Assistance Branch, NIOSH, U.S. Department of Health and Human Services, Cincinnati, Ohio, Report No. HETA-87-060-1825, 13 pages, 3 references
State
CO; OH;
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