Risk Assessment for Metalworking Fluids and Respiratory Outcomes
Safety and Health at Work
;
: 428-436, 2019.
Artículo
en Inglés
| WPRIM
| ID: wpr-786579
ABSTRACT
BACKGROUND:
Metalworking fluids (MWFs) are mixtures with inhalation exposures as mists, dusts, and vapors, and dermal exposure in the dispersed and bulk liquid phase. A quantitative risk assessment was performed for exposure to MWF and respiratory disease.METHODS:
Risks associated with MWF were derived from published studies and NIOSH Health Hazard Evaluations, and lifetime risks were calculated. The outcomes analyzed included adult onset asthma, hypersensitivity pneumonitis, pulmonary function impairment, and reported symptoms. Incidence rates were compiled or estimated, and annual proportional loss of respiratory capacity was derived from cross-sectional assessments.RESULTS:
A strong healthy worker survivor effect was present. New-onset asthma and hypersensitivity pneumonitis, at 0.1 mg/m3 MWF under continuous outbreak conditions, had a lifetime risk of 45%; if the associated microbiological conditions occur with only 5% prevalence, then the lifetime risk would be about 3%. At 0.1 mg/m3, the estimate of excess lifetime risk of attributable pulmonary impairment was 0.25%, which may have been underestimated by a factor of 5 or more by a strong healthy worker survivor effect. The symptom prevalence associated with respiratory impairment at 0.1 mg/m3 MWF was estimated to be 5% (published studies) and 21% (Health Hazard Evaluations).CONCLUSION:
Significant risks of impairment and chronic disease occurred at 0.1 mg/m3 for MWFs in use mostly before 2000. Evolving MWFs contain new ingredients with uncharacterized long-term hazards.
Texto completo:
Disponible
Índice:
WPRIM (Pacífico Occidental)
Asunto principal:
Asma
/
Enfermedad Crónica
/
Incidencia
/
Prevalencia
/
Sobrevivientes
/
Medición de Riesgo
/
Exposición por Inhalación
/
Polvo
/
Alveolitis Alérgica Extrínseca
/
Asma Ocupacional
Tipo de estudio:
Estudio de etiología
/
Estudio de incidencia
/
Estudio de prevalencia
/
Estudio pronóstico
/
Factores de riesgo
Límite:
Adulto
/
Humanos
Idioma:
Inglés
Revista:
Safety and Health at Work
Año:
2019
Tipo del documento:
Artículo
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