Document Detail


Effects of retrofit emission controls and work practices on perchloroethylene exposures in small dry-cleaning shops.
MedLine Citation:
PMID:  11843197     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The effectiveness of commercially available interventions for reducing workers' perchloroethylene exposures in three small dry-cleaning shops was evaluated. Depending upon machine configuration, the intervention consisted of the addition of either a refrigerated condenser or a closed-loop carbon adsorber to the existing dry-cleaning machine. These relatively inexpensive (less than $5000) engineering controls were designed to reduce perchloroethylene emissions when dry-cleaning machine doors were opened for loading or unloading. Effectiveness of the interventions was judged by comparing pre- and postintervention perchloroethylene exposures using three types of measurements in each shop: (1) full-shift, personal breathing zone, air monitoring, (2) next-morning, end-exhaled worker breath concentrations of perchloroethylene, and (3) differences in the end-exhaled breath perchloroethylene concentrations before and after opening the dry-cleaning machine door. In general, measurements supported the hypothesis that machine operators' exposures to perchloroethylene can be reduced. However, work practices, especially maintenance practices, influenced exposures more than was originally anticipated. Only owners of dry-cleaning machines in good repair, with few leaks, should consider retrofitting them, and only after consultation with their machine's manufacturer. If machines are in poor condition, a new machine or alternative technology should be considered. Shop owners and employees should never circumvent safety features on dry-cleaning machines.
Authors:
Lynda M Ewers; Avima M Ruder; Martin R Petersen; G Scott Earnest; Linda M Goldenhar
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Applied occupational and environmental hygiene     Volume:  17     ISSN:  1047-322X     ISO Abbreviation:  Appl Occup Environ Hyg     Publication Date:  2002 Feb 
Date Detail:
Created Date:  2002-02-14     Completed Date:  2002-02-28     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  9103256     Medline TA:  Appl Occup Environ Hyg     Country:  England    
Other Details:
Languages:  eng     Pagination:  112-20     Citation Subset:  IM    
Affiliation:
National Institute for Occupational Safety and Health, Cincinnati, Ohio, USA.
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MeSH Terms
Descriptor/Qualifier:
Air Pollutants, Occupational / analysis*
Air Pollution, Indoor / analysis*
Commerce
Environmental Monitoring / methods*
Humans
Intervention Studies
Laundering / instrumentation,  methods
Occupational Exposure / analysis,  prevention & control*
Occupational Health
Ohio
Probability
Sensitivity and Specificity
Tetrachloroethylene / analysis*
Chemical
Reg. No./Substance:
0/Air Pollutants, Occupational; 127-18-4/Tetrachloroethylene

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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