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Residual tetrachloroethylene in dry-cleaned clothes
1Department of Hygiene, School of Medicine, University of Tokushima, Japan.
Environmental Research
|April 1, 1989
Summary
Residual tetrachloroethylene (TCE) in dry-cleaned clothes can be high, varying by establishment and fiber type. Minimizing this residual TCE is crucial for reducing environmental contamination in dry-cleaning outlets and homes.
Area of Science:
- Environmental Chemistry
- Occupational Health
Background:
- Dry cleaning utilizes tetrachloroethylene (TCE), a volatile organic compound.
- Concerns exist regarding residual TCE levels in garments and potential environmental release.
Purpose of the Study:
- To quantify residual tetrachloroethylene (TCE) in dry-cleaned garments.
- To assess TCE air concentrations in dry-cleaning environments and consumer homes.
- To identify factors influencing residual TCE levels.
Main Methods:
- Analysis of residual TCE in dry-cleaned clothing samples.
- Air sampling in dry-cleaning establishments.
- Measurement of TCE in expired air of employees.
- Monitoring TCE levels in consumer homes.
Main Results:
- Residual TCE levels up to 13.6 mg/g were detected in dry-cleaned clothes.
- Significant variations in TCE levels were observed across different dry-cleaning facilities and fabric types.
- Elevated TCE air concentrations (up to 4.8 mg/m3) were measured within outlets.
- Increased TCE levels were found in employees' expired air and in consumer homes.
Conclusions:
- Residual TCE in dry-cleaned clothes is a significant source of environmental contamination.
- Variability in TCE levels suggests differences in dry-cleaning processes and material interactions.
- Reducing residual TCE in garments is essential to mitigate exposure in occupational and residential settings.