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Objective: To determine the prevalence of respiratory problems and lung function impairment among quarry workers in Ebonyi State, Nigeria. Methods: Respiratory
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the State Pollution. Control Boards, the Stone Crushing Units and their Association during the Study is secondary blasting techniques are followed. In the Maximum. Operati ng. Hrs/Da y. Electrical. Consumption(K wh/Month) for. 25 days.
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ENCE 420 – Construction Equipment and Methods to a secondary crusher, which further reduces the stone size. Jaw crushers operate by allowing stone to )(60. 100. 2. 2. CWS. CWS. V. V. Q. = = = ×. = 864 hence. , for ng. Substituti. 2 .
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31 Jan 2018 Keywords: Knowledge, manual stone crushing, risk perception, safety practice, Methods: A descriptive cross-sectional study was conducted among 156 Hazards among Manual Stone Crushing Workers in Sokoto, Nigeria.
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