Nigeria is rich is solid mineral resources, such as: Kaolin, gypsum, mica, clay, tantalite, iron ore, gemstone, silica sand.
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Characteristics of the person inhaling particles can also influence the ef fects of dust. Breathing rates and smoking are among the most important. The settling of dust in the lungs. increases with the length of time the breath is held and how deeply the breath is taken. Whether breathing is through the nose or mouth is also important.
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: Limestone . Handling Procedures: Avoid dust contact with eyes. Wear the appropriate eye protection against dust. Minimize dust generation and accumulation. Avoid breathing dust. Wear the appropriate respiratory protection against dust in poorly ventilated areas and if TLV is exceeded. Use good safety and industrial hygiene practices.
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Limestone is a very valuable natural resource. It is a sedimentary rock that is typically composed of marine organisms. If you've found a deposit of limestone, then what you're really seeing are the skeletal fragments ... Inhaling the dust from a limestone quarry is known to cause silicosis and pneumoconiosis. Local populations may suffer ...
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The aims of this study were to analyze the effect of exposure by limestone dust for increasing of IL-8 serum and pulmonary function decline to workers of limestone mining …
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In the study, a mix of M30 grade concrete was used and designed as per the guidelines of IS 10,262 2009 [33]. 10, 20, 30, and 40% of fine aggregates were replaced with crushed limestone dust in the concrete mix.Water-cement ratio and content of cement were kept constant (0.462 and 430 kg/m 3 respectively) in the study. Coarse aggregates …
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To monitor the effect of adding limestone dust on resilient modulus of the potential mixes studied in this project, which is a very important parameter in pavement design, samples containing 5, 10 ...
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mouths and nasopharyngeal regions while talking or breathing. The potential impact of dust particles of the respiratory system includes airflow resistance, lung volumes ... this study investigated the effect of chalk dust particle from chalkboard usage on students' respiratory function. A. P. Azodo et al. / Mindanao Journal of Science and ...
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Is inhaling Limestone dust dangerous? Eye contact: Limestone dust: May cause irritation through mechanical abrasion. Inhalation: Repeated inhalation of respirable crystalline silica (quartz) may cause silicosis, a fibrosis (scarring) of the lungs. Silicosis is irreversible and may be fatal.
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When people breathe silica dust, they inhale tiny particles of the mineral silica. Over time, the silica dust particles can cause lung inflammation that leads to the formation of lung nodules and scarring in the lungs called pulmonary fibrosis. This is a progressive disease that normally takes 10–30 years after first exposure to develop.
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For example, Hamdan, El-Ashgar, & Musalam, (2021) conducted a study targeting 30 workers in limestone factories in Gaza strip, and found that 50% of the workers who worked for 10 years or more in ...
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Teachers using chalk and board are at an increased risk of developing occupationally related pulmonary function impairments and hence there is a need to shift from routine chalk andBoard to marker and whiteboard. Introduction: Chalk and board is a traditional and still the most commonly used teaching aid in developing countries like …
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In 1996, a paper entitled "Recommendations for reducing the effect of grain dust on the lungs," sponsored by the Standards Committee of the CTS, was published in the Canadian Medical Association Journal, recommending a permissible exposure limit of 5 mg/m 3 to control short-term effects of exposure. The report notes that the economic ...
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Since the majority of these chemicals are consumed by inhaling litter dust, it makes sense as to why the safest litters happen to be dust-free. Since there are so many litters to choose from on the market, let's introduce you to some of the dust free litters that we trust.
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The studies on road dust had differences in their objectives, study methods, and analyses. Six articles were review articles of studies done on the effects of road dust on human health, while the rest dealt either with the concentration of pollutants in road dust or the effects of road dust on human health. Some articles dealt with both issues.
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One resident of Limestone County, Alabama said "The water truck stops for lunch and before he gets back, there is dust everywhere. ... Wildlife are affected by the respiratory effects of breathing in smaller particle sizes. Also, as native vegetation is destroyed, they lose breeding and nesting sites as well as sources of food and shelter ...
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Cumulative Effect of Quarry Dust on Respiratory Health of Stone Quarry Workers. 2023 • Horizon Research Publishing(HRPUB) Kevin Nelson ... Discussion This study attempted to assess the risk factors that affect the …
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All participants answered a questionnaire on dust exposure at home and health effects, as well as performed a lung function test in which both reported and measured health effects were investigated. People who live in close proximity to the quarry sites reported exposure to dust at home (98%), land destruction (85%), plant leaves …
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a shell limestone mine and concluded that limestone can cause pulmonary changes over a prolonged period under Background. Dust exposure and its related harmful effects on …
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Wood dust is another common type created by construction sites. When working with either hard or soft wood, dust particles can be released into the air. Wood dust also comes from manufactured products such as fiberboard and plywood. Dust will also come from lower-toxicity materials, such as gypsum, limestone, dolomite, and marble.
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Ingestion: Dust: Rinse mouth and drink plenty of water. Never give anything by mouth to an unconscious person. Get medical attention. Most important symptoms/effects, acute and delayed Inhaling dust may cause discomfort in the chest, shortness of breath, and coughing. Prolonged inhalation may cause chronic health effects.
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worker exposures to airborne silica dust, including from quartz in stone. It covers the health effects of breathing silica dust, recommends ways to protect workers, and describes how OSHA and NIOSH can help employers effectively reduce silica dust exposures. Employers must ensure that workers are properly protected from exposure to silica.
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Most people get silicosis from a workplace where they inhale large amounts of silica dust. Learn more about the causes, risk factors, symptoms, treatments, and how to prevent this lung disease.
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Silica dust is harmful when inhaled into your lungs. As it is 100 times smaller than a grain of sand, you can be breathing it in without knowing. Exposure to silica dust can lead to the development of lung cancer, silicosis (an irreversible scarring and stiffening of the lungs), kidney disease and chronic obstructive pulmonary disease. It is ...
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• S-MINER Bill proposed reduced dust standards: – 1.0 mg/m 3 coal mine dust standard – 50 g/m 3 silica dust standard • MSHA has placed coal dust on regulatory agenda for 2010 and silica dust on regulatory agenda for 2011 • As mining becomes more efficient and production increases, the potential to generate more dust also increases
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The exposed group reported significantly higher eye and nasal allergy (22% vs. 3%), eye soreness (18% vs. 1%), and dryness (17% vs. 3%), chest tightness (9% vs. 1%), and chronic cough (11% vs. 0%) …
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Dust inhalation affects your body in various ways. For instance, in the early few weeks or months of dust exposure, you may experience eyes, nose, and throat irritation, inflammation of the mucous membrane, and …
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(PDF) Assessing the effects of limestone dust and lead pollution on the. Side Effects Of Inhaling Lime Dust Inhaling 25 mg of calcium oxide can cause several undesirable respiratory side effects such as coughing, sneezing and. Breathing rates and smoking are among the most. In high exposure situations, further respiratory.
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A growing number of pneumoconiosis in chalk plant workers was also reported (Burilkov et al. 1991). The acute health effects caused due to calcium carbonate and calcium sulfate in the chalk dust ...
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Symptoms of harmful exposure to limestone dust include a persistent cough, labored breathing and decreased lung function. Peter Aitken is a Fox News Digital reporter with a focus on national and ...
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Background. Dust exposure and its related harmful effects on miners is a serious health issue. Objectives. The present study was undertaken to identify respirable dust concentrations and free silica content in 24 dust samples collected from a limestone mine during pre-monsoon and post-monsoon seasons. Methods. Time-weighted …
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Most people get silicosis from a workplace where they inhale large amounts of silica dust. Learn more about the causes, risk factors, symptoms, treatments, and …
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DOI: 10.1016/0013-9327(72)90005-5 Corpus ID: 52107766; Effects of limestone dust accumulation on composition of a forest community @article{Brandt1972EffectsOL, title={Effects of limestone dust accumulation on composition of a forest community}, author={C.Jeffrey Brandt and Richard W. Rhoades}, journal={Environmental Pollution}, …
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Lime dust is a fine powder created by grinding limestone rocks. It contains calcium carbonate, which is not toxic to human beings in small amounts. However, inhaling large amounts of lime dust can lead to various respiratory problems that …
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The image below shows the maximum amount of silica dust someone should be breathing in a day after using the right controls, compared to the size of a UK penny.. The danger to stoneworkers comes from activities such as cutting, drilling, grinding, carving and polishing; these produce a fine dust which contains RCS, fine particles which can be ...
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The average silica content of the dust was 9%. The average cumulative dust exposure was 7.0 mg/m(3) year and cumulative silica exposure was 0.6 mg/m(3) year. Significant associations between exposure to concrete dust and a small lung function (FEV(1)/FVC ratio, MMEF) loss were found, independent of smoking habits and of a history of allergy.
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Whether as dust, fumes, spores or smoke, airborne particles are generated by a variety of processes on worksites.Workers have to be diligent about protecting themselves from the more dangerous particles to which they may be exposed. The immediate consequence of breathing in particles is usually airway irritation, but …
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The present study was undertaken to identify respirable dust concentrations and free silica content in 24 dust samples collected from a limestone mine during pre …
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