Dust at a construction site can take many different forms, and the materials released into the air can be made of rock, wood, chemicals, and even metal, creating a potentially lethal dust that can spread for a very long distance. For example, a study from Pakistan and Saudi Arabia looked at the effects of long-term exposure to cement dust. The ...
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Silicosis is a long-term lung disease caused by inhaling large amounts of crystalline silica dust, usually over many years. Silica is a substance naturally found in certain types of …
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Several studies indicate that chronic exposure to cement dust can significantly lower pulmonary functions with duration of exposure [5,6,7,8]. Furthermore, …
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What are the risks? In the short term, exposure to high levels of cement dust irritates the nose and throat. Longer term exposure could lead to occupational asthma. Mortar can …
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Dangerous Dust. My building is being repointed, and seven of the 11 windows in my apartment are on walls undergoing work. For the last six weeks or so, I have been experiencing tightness in my ...
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The profile of Ghana's silica dust exposed population is not well studied and documented. Stone quarry workers are at high risk of developing silica‐related symptoms and diseases due to the cumulative effect of silica dust exposure, a finding that is supported by a large body of epidemiologic evidence.
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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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This study aimed to determine the effect of long term exposure to cement dust on lung function in non-smoking cement mill workers. This is a cross-sectional study of respiratory functions. Spirometry was performed in 100 apparently healthy volunteers; 50 non-smoking cement mill workers and 50 non-smoking un-exposed subjects.
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Although the effects of inhaling dust are known, no studies have been conducted on the lung function of street sweepers working for the Zahedan municipality. ... Effect of duration of exposure to cement dust on respiratory function of non-smoking cement mill workers. Int J Environ Res Public Health. 2013; 10 (1):390–398. doi: 10.3390 ...
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The purpose of this study is to evaluate the performance of stone powder (substitute) in concrete when mixed with concrete to ensure workability, durability, and strength of concrete using OPC (class 43). Efforts to improve concrete performance in recent years suggest that natural substitutes for sand, combined with grout, can improve the strength …
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Crushed rock dust acts as a filler and helps to reduce the total voids content in concrete. Consequently, this contributes to improve the quality of concrete. In this research, some part of the sand replaced by crushed rock dust at amounts of up to 30 percent keeping all the other ingredients and proportions constant.
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Objective: To examine the strength of evidence through systematic review of published literature on the association between effects of exposure to cement dust on respiratory health of communities residing near cement plants. Design and data sources: A systematic search and review of observational studies in Medline, Embase, and …
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A combined cross-sectional and cross-shift study was conducted in Dire Dawa cement factory in Ethiopia. 40 exposed production workers from the crusher and packing sections and 20 controls from the guards were included. Personal "total" dust was measured in the workers' breathing zone and peak expiratory flow (PEF) was measured …
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Silica is a natural substance found in varying amounts in most rocks, sand and clay. For example, sandstone contains more than 70% silica, whereas granite might contain 15-30%. Silica is also a major constituent of construction materials such as …
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Overview. Crystalline silica is a common mineral found in the earth's crust. Materials like sand, stone, concrete, and mortar contain crystalline silica. It is also used to make products such as glass, pottery, ceramics, bricks, and artificial stone. Respirable crystalline silica – very small particles at least 100 times smaller than ordinary ...
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Those three symptoms identify a group of diseases called pneumoconioses. These diseases, caused by dust inhalation, are often described as work-related. They include diseases like asbestos-related conditions. Silicosis is …
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The dangers of inhaling concrete dust and stone dust should never be played down. Dust from both can carry high volumes of silica, which can travel into your lungs and cause scar tissue or cell necrosis. When enough silica crystals are inhaled over time, lungs can be damaged beyond repair. Crystalline silica is microscopic and that makes it ...
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In fact, almost all construction materials, including stone, cement, and ceramic, contain this compound. Cutting, grinding, drilling, sanding, and chipping cause the crystalline silica dust to become airborne. This is sure to be inhaled by anyone nearby, especially when protective measures are not in place. Managing Respirable Dust in the …
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Concrete dust contained more than 30 wt.% of crystalline silica, while cement paste had very little crystalline silica. Most of the silicon in the cement paste was in the form of calcium silicates and in compounds such as thaumasite, lamite, and alite. Cement dust contained more than 35 wt.% of calcium hydroxide in the crystalline phases.
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There was a significantly obvious correlation between occupational dust exposure and COPD of the population-based studies assessed in this article. The risk of developing COPD for workers exposed to dust was 1.51 times higher than for controls (I 2 = 40%, 95% confidence interval: 1.27-1.79). The presence of publication bias was not found.
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Commonly cited health effects of PC include irritation of the eyes, skin, and nose; cough or expectoration; and exertional dyspnea (breathing difficulty), wheezing, and chronic bronchitis. The effects of exposure to cement dust have been associated with many common preexisting health conditions, including asthma and even periodontal tissue ...
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Construction Dust Causes, Effects and Remedies. Construction dust can seriously damage the health of construction workers and if exposed for longer times can eventually even kill them. About 22,000 to 52,000 persons per year are dying due to inhaling polluted air in USA alone – most of whom are construction workers.
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Silica dust is made up of small particles that can become airborne during work activities with materials that contain silica. Particles that are small enough to be inhaled deep into the lungs are called respirable. Crystalline silica is typically found in: Soil; Sand; Concrete; Mortar; Granite and other minerals; Artificial stone
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Cement dust causes lung function impairment, chronic obstructive lung disease, restrictive lung disease, pneumoconiosis and carcinoma of the lungs, stomach and colon. Other studies have shown that cement dust may enter into the systemic circulation and thereby reach the essentially all the organs of body and affects the different tissues ...
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Large quantities of silica dust can be generated during cutting and can become entrained in the ventilating air, which can carry the dust to the breathing zones of mine workers. Mine Ventilation Solutions Silica Exposure In Cement Production. High levels of dust can be produced when cement is handled, for example when emptying or …
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An abundant natural material, crystalline silica is found in stone, soil, and sand. It is also found in concrete, brick, mortar, and other construction materials. Crystalline silica comes in several forms, with …
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Outdoor Air. Lung Health & Procedures. Silica is the most abundant mineral in the earth's crust. Unfortunately, breathing in silica dust caused by chipping, cutting, …
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If you or a loved one has been seriously injured because of your exposure to concrete dust, please contact us for a free initial consultation at 304-347-5050 (local) or 877-341-2595 (toll free). You can also contact us through our website,
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Silicosis is an interstitial lung disease caused by breathing in tiny bits of silica, a common mineral found in many types of rock and soil. Over time, exposure to …
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This article outlines those hazards and makes recommendations on how to use cement safely. Waterproof rubber boots are essential in working with wet concrete. Health effects. Cement can cause ill health by skin contact, eye contact, or inhalation. Risk of injury depends on duration and level of exposure and individual sensitivity.
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