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Visual disturbances after industrial triethylamine exposure
International Archives of Occupational and Environmental Health
|January 1, 1986
Summary
Workers exposed to triethylamine (TEA) in polyurethane foam production experienced temporary visual disturbances like foggy vision and blue haze. Medical exams showed no permanent eye damage, suggesting TEA exposure is linked to transient visual symptoms.
Area of Science:
- Occupational Health
- Toxicology
- Ophthalmology
Background:
- Polyurethane foam production involves chemical exposures.
- Triethylamine (TEA) is a volatile amine used in foam production.
- Worker health surveillance is crucial in industrial settings.
Purpose of the Study:
- To investigate visual disturbances reported by workers in a polyurethane foam plant.
- To determine the association between triethylamine exposure and observed symptoms.
- To assess the potential for permanent ocular damage from workplace chemical exposure.
Main Methods:
- Observational study of 19 workers over 11 weeks.
- Symptom reporting and environmental monitoring for triethylamine levels.
- Medical examinations of affected workers during symptom-free periods.
Main Results:
- Five workers reported 47 instances of visual disturbances, including foggy vision and blue haze.
- Symptoms correlated with triethylamine exposure levels ranging from 4-13 mg/m3 (TWA), with higher peak levels.
- Medical examinations revealed no lasting ocular pathology in affected workers.
Conclusions:
- Triethylamine exposure in polyurethane foam production is associated with temporary, reversible visual disturbances.
- Occupational exposure limits should be monitored to prevent such symptoms.
- Further research may explore the specific mechanisms of TEA-induced visual effects.