Nigeria is rich is solid mineral resources, such as: Kaolin, gypsum, mica, clay, tantalite, iron ore, gemstone, silica sand.
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Recycling concrete &building rubble is not only able to bring profit to investors, but also good for environment protection.
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By absorbing the advanced technology from the world, we researched and designed PF series impact crusher.…
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Base on the plentiful experience of producing and marketing of impact crusher, Sofol R&D institution…
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Adopting technology from the world, PY Series spring cone crusher has an excellent performance in secondary…
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Sofol VSI Series vertical shaft impact crusher is designed by reputed German expert of Sofol and every…
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This rule has specifically outlined measures to be taken for the prevention of excessive exposure of dust in stone crusher settings. Further, the amendment in the Factories Act in 1987 has also set guidelines for calculating Permissible Limit Value (PLV) of dust laden with free silica8. Materials and Methods A cluster of stone mining and ...
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Mine Safety and Health Administration (MSHA) exposure data indicate average noise exposures exceeding MSHA's permissible exposure level (PEL) across surface and underground coal and non-coal mining sectors. Exceedance values range from approximately 7 to 18%, which is greater than that of the general, non-noise-exposed …
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The potential for respirable silica dust exposure to workers in the stone and metal/nonmetal mining industry is related to the percentage of silica in the product being mined or processed. For crushed and broken stone or dimension stone, silica percentages are on the high end, with sandstones and granites averaging 70% to 90%.
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Inhalation of respirable silica dust can occur during excavation, disturbance, working, cutting, breaking, crushing, drilling, grinding, or transportation of rock, sand or materials …
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This rule has specifically outlined measures to be taken for the prevention of excessive exposure of dust in stone crusher settings. Further, the amendment in the Factories Act in 1987 has also set guidelines for …
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Stone dust is a by-product of crushed rocks; as a multipurpose building material it provides compact results. Despite its many benefits to the construction industry, it comes with a number of health risks.
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Chronic exposure to dust at stone crushing plants may increase the risk of respiratory problems and impaired lung function. Employers lacking in appropriate safety measures against dust are at higher risk of the problem. The risk is high among the workers who smoke cigarettes. Exposure to dust and smoking for long periods of time can …
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Abstract. Background and Objectives: In stone crusher workers, one of the major health hazards is respiratory disorder. Globally, it is most common occupational disease and a major cause of morbidity and mortality. Prevalence of respiratory disease depends upon amount of silica exposure and duration of exposure.
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Due to lack of data from Marathwada region of Maharashtra, we aimed this study to know effect of duration of exposure to silica dust in stone crusher workers. A cross-sectional type of observational study was conducted. Pulmonary function tests were recorded in 120 male stone crusher workers. Intergroup statistical analysis amongst the workers ...
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It was concluded from this study that pulmonary function test decreases as duration of exposure to silica dust increases, which may increase the risk the respiratory problems. Background and Objectives: In stone crusher workers, one of the major health hazards is respiratory disorder. Globally, it is most common occupational disease and a major …
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exposure to silica dust in stone crusher plant workers. MATERIAL AND METHODS This cross-sectional study was conducted at Stone crusher plant located at Nagaur district (Ajmer region) of Western ...
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Environmental pollution study was undertaken in the stone crushers of Chitrakoot area, U.P., to asses the dust exposure risk in stone crushers.
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that stone crusher mill operators consult with water spray specialists to properly design a system suited for their dust control needs. Limitations Although water spray systems are very cost-effective in significantly reducing the risk of silica dust exposure in stone crusher units, they do not eliminate the risk of silicosis or other related
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Due to lack of data from Marathwada region of Maharashtra, we aimed this study to know effect of duration of exposure to silica dust in stone crusher workers. A cross-sectional type of observational study was conducted. Pulmonary function tests were recorded in 120 male stone crusher workers. Intergroup statistical analysis amongst the workers ...
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Mahendra Kumar Upadhyaya, "Effect of Occupational Silica Exposure on Stone Crusher Workers." Applied Ecology and Environmental Sciences, vol. 9, no. 9 (2021): 806-810. doi: 10.12691/aees-9-9-4. 1. Introduction . Stone crushing in India is a labour intensive industry engaged in crushing mined stone into gravels of different
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In one human study that showed improvements in kidney stones, the daily dosage was 4.5 grams of chanca piedra infused in one cup of hot water twice daily for 12 weeks ().Chanca piedra pills or ...
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Stone crusher machines are essential tools in the construction industry, used to crush rocks and stones into smaller pieces for a variety of applications. This guide provides an overview of stone crusher machines, including their history, components, applications, and buying considerations. Whether you are a contractor, landscaper, or …
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Preventive Strategies for Reduction of Occupational Exposure of Free Crystalline Silica Dust in Steel Foundry and Stone Crusher Unit
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ards in dierent industries, including the stone quarry and crushing industry, have been going on for many years. Far-zana et al. (2014) studied the noise pollution of the stone crusher machine at Jaong, Sylhet, and found that the maxi-mum noise level at the nearby crushing machine was more than the level prescribed by National Institute for …
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Repeated noise exposure and occupational hearing loss are common health problems across industries and especially within the mining industry. Large mechanized processes, blasting, grinding, drilling, and work that is often in close quarters put many miners at an increased risk of noise overexposure. In stone, sand, and gravel mining, …
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Although average exposure levels, particularly during the dry season, may exceed the Permissible Exposure Limit for silica, the overall reductions observed were substantial. ... {Reduction of Respirable Silica Following the Introduction of Water Spray Applications in Indian Stone Crusher Mills}, author={Perry Gottesfeld and Mark Nicas and John ...
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Industrial Health 2011, 49, 221–227 PARTICULATES AND SILICA EXPOSURE AT STONE CRUSHING SITE Field Report 221 Exposure to Respirable Particulates and Silica in and around the Stone Crushing Units in Central India Krishnendu MUKHOPADHYAY1*, Ayyappan RAMALINGAM1, Raghunathan RAMANI1, Venkatesan DASU1, Arulselvan …
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Learn everything you need to know about primary crushing, secondary crushing, and tertiary crushing in this comprehensive guide. Discover the types of crushers used in each stage, their working principles, and the advantages and disadvantages of each process. Get answers to frequently asked questions and improve your understanding of …
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Occupational Exposure in Stone Crusher Industry with Special Reference to Noise: A Pragmatic Appraisal Journal of Acoustical Society of India 71 scale manufacturing industry agenda in these countries.
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Tab le 1: Dust and free silica exposure assessment for stone mineand crusher worker s Industry Age Work Dust conc. MRE Equivalent Free silica % of free of worker Experience(mg) /8 hr Time …
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Objectives: This review was intended to examine the influence of dust exposure on lung capacity of the wood workers and stone crushers. Methods: This was cross sectional comparative review.
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Conclusions: The study concluded that the exposure to stone dust among the quarry workers perhaps leads to deterioration of their cardiovascular and pulmonary health. ... Occupational Health Problems of stone crusher in West Bengal- A pilot study at Birbhum District. Regional occupational Health Centre (E), 2–9.
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The Shankargarh town of Prayagraj district of Uttar Pradesh, India, is well known for its high quality silica sand and large scale surface mining. Evaluation of health of crusher workers was conducted in the stone crushers units of Shankargarh villages to access the silica dust exposure risk on stone crusher workers and nearby residents. These areas are …
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Environmental pollution study was undertaken in the stone crushers of Chitrakoot area, U.P., to asses the dust exposure risk in stone crushers. The stone available in the area is igneous rock ...
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The aim of this study was to assess the effects of stone crushing dust pollution on three commonly cultivated fruit plant species (Vitis vinifera L., Morus alba L., and Prunus …
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The prevalence of occupational injuries among blue-collar workers is higher in the stone-crushing industries due to high-risk and iterant nature of the work. These occupational …
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Due to lack of data from Marathwada region of Maharashtra, we aimed this study to know effect of duration of exposure to silica dust in stone crusher workers. A cross-sectional type of observational study was conducted. Pulmonary function tests were recorded in 120 male stone crusher workers. Intergroup statistical analysis amongst the workers ...
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The results for RCS exposure values among crusher operators (78 μg/ m 3 ) in this study are lower than the study by Amran et al. (2017), who found that in crusher operators in Malaysian quarries ...
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Control group Exposure. Figure 4 Weight variables of stone crusher workers (direct exposure group) and control group . Values are represented as Mean ± SD . FVC FEVI PEFR MVV 0 50 100 150. Volume in litres. Control Direct exposure * P < 0.01 * * * * Figure 5 Pulmonary function test parameters in of stone crusher workers (direct exposure …
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PE series jaw crusher is usually used as primary crusher in quarry production lines, mineral ore crushing plants and powder making plants.
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