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Risk analysis and assessment of occupational hazard fromindiumand its compounds in manufacture of liquid crystal display panel / 中华劳动卫生职业病杂志
Chinese Journal of Industrial Hygiene and Occupational Diseases ; (12): 573-575, 2015.
Artículo en Chino | WPRIM | ID: wpr-350535
ABSTRACT
<p><b>OBJECTIVE</b>To understand the exposed positions and levels of indium and its compounds in manufacture of liquid crystal displays, and to evaluate the degree of occupational hazard from indium and its compounds.</p><p><b>METHODS</b>On-site investigation of occupational health, occupational hazard monitoring, and occupational health examination were used to evaluate the degree of occupational hazard from indium and its compounds in three manufacturers of liquid crystal display panel in Shenzhen, Guangdong, China.</p><p><b>RESULTS</b>The time-weighted average (TWA) and short-term exposure limit (STEL) concentrations of indium and its compounds to which sputtering machine operating positions were exposed were less than 0.002~0.004 mg/m³ and 0.006~0.007 mg/m³, respectively, both of which complied with the National Hygienic Standard (PC-TWA = 0.1 mg/m³; PC-STEL = 0.3 mg/m³); the TWA and STEL concentrations of indium and its compounds to which grinding positions were exposed were 0.114~2.98 mg/m³ and 0.31~10.02 mg/m³, respectively, both of which exceeded the National Hygienic Standard with the highest concentration 33-fold higher than the standard. No significant health damages were found in exposed workers according to the results of occupational health examination.</p><p><b>CONCLUSION</b>The grinding positions are the key to the control of occupational hazard from indium and its compounds in manufacture of liquid crystal display panel. The workers should be equipped with the anti-particulate full-face respirator, which is an effective way to prevent occupational hazard from indium and its compounds.</p>
Asunto(s)
Texto completo: Disponible Índice: WPRIM (Pacífico Occidental) Asunto principal: Presentación de Datos / China / Exposición Profesional / Salud Laboral / Medición de Riesgo / Valores Limites del Umbral / Contaminantes Ocupacionales del Aire / Cristales Líquidos / Toxicidad / Indio Tipo de estudio: Estudio de etiología / Factores de riesgo Límite: Humanos País/Región como asunto: Asia Idioma: Chino Revista: Chinese Journal of Industrial Hygiene and Occupational Diseases Año: 2015 Tipo del documento: Artículo

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Texto completo: Disponible Índice: WPRIM (Pacífico Occidental) Asunto principal: Presentación de Datos / China / Exposición Profesional / Salud Laboral / Medición de Riesgo / Valores Limites del Umbral / Contaminantes Ocupacionales del Aire / Cristales Líquidos / Toxicidad / Indio Tipo de estudio: Estudio de etiología / Factores de riesgo Límite: Humanos País/Región como asunto: Asia Idioma: Chino Revista: Chinese Journal of Industrial Hygiene and Occupational Diseases Año: 2015 Tipo del documento: Artículo