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Results 1 - 437 of 437 There is evidence that children ages 5 to 17 grow beans in Paraguay. According to the Government of Vietnam's National Child Labor Survey Crushing ore to extract gold exposes children to lead-contaminated dust. and inhalation of silica dust, which can lead to chronic lung disease and death.
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silica dust, crystalline, in the form of quartz or cristobalite - NCBI - NIH
Silica was considered by previous IARC Working Groups in 1986, 1987, and 1996 the personal exposure to respirable dust and respirable quartz in stone- crushing units Quartz concentrations varied significantly by plant, job, and year and refractory brickworkers were exposed at a company in Ha Noi, Viet Nam.
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Comparative assessment of chemical treatments on extraction
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Silica, Crystalline - Overview | Occupational Safety and Health
Materials like sand, stone, concrete, and mortar contain crystalline silica. or crushing stone result in worker exposures to respirable crystalline silica dust.
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As largest crushing plant,mill equipments and beneficiation plants production Silica sand in India is used for various appliions, such as glass formation in
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