Airborne viruses can spread on dust, nonrespiratory
Influenza viruses can spread through the air on dust, fibers and other microscopic particles, according to new research. The findings have obvious implications for coronavirus transmission as well
What is MDLD? Miners' health matters
If the concentration of dust is too high, a wider immune response is triggered by the macrophages. Fibroblast cells produce collagen to form nodules of scar tissue around the particles in an attempt to trap
Autoimmune disease Nature
Immune attack against healthy tissues, known as autoimmunity, is thought to play a part in more than 80 different diseases, including type 1 diabetes, rheumatoid arthritis, Crohn’s disease
Crystalline Silica CancerCausing Substances
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
Respiratory disease in aggregate quarry workers related to
Abstract. Objective: To evaluate the respiratory health and its relationship with exposure to silica, smoking, alpha 1antitrypsin, and Pi phenotype in aggregate quarries workers.
Pulmonary problems among quarry workers of stone
Background: Respiratory problem is one of the major health hazards in dustexposed workers; it is a major cause of morbidity and mortality all over the world. Objective: To
Preventing Dust Diseases Mining and Quarrying
The Mining and Quarrying Occupational Health and Safety Committee (MAQOHSC) is dedicated to protecting South Australian mine and quarry workers from Occupational
quarry dust and immune disease ·
Contribute to dinglei/en development by creating an account on GitHub.
Disorders of the Immune System Johns
Having an allergic reaction is the most common example of an overactive immune system. Dust, mold, pollen, and foods are examples of allergens. Asthma. The response in your lungs can cause coughing, wheezing, and
Lung Function and Respiratory Health of Populations
This study aimed to investigate the health effects of dust exposure on people living close to quarry sites and compared them with those who live far from the quarry sites. A crosssectional comparative study was conducted among 79 exposed participants, who lived less than 500 m away from the quarry sites, and 79 control
MDPI Publisher of Open Access Journals
MDPI Publisher of Open Access Journals
(PDF) IMPACT OF DUST EXPOSURE AMONG STONE
Methods: Crosssectional, descriptive and analytical study was carried out on 100 quarry workers; 36 males and 54 females (age; between 1857 years) who were exposed to stone dust for more than
Speakers, Dust and Respiratory Health Forum
Presentation: Elucidation of the immune system response to inhalable coal dusts Driving better respiratory health for mine and quarry workers (copresenting with Dr Graeme Edwards) Presentation: Prevalence of coal mine dust lung disease: Literature review and Queensland prevalence estimates
SILICA DUST, CRYSTALLINE, IN THE FORM OF QUARTZ
Silica dust, crystalline (quartz or crystobalite) 1.3.2 Quartz crystals Quartz has been used for several thousand years in jewellery as a gem stone (e.g. amethyst, citrine), and is used extensively in both the electronics and optical components industries. Electronicgrade quartz is used in electronic circuits, and opticalgrade quartz is used in
Pulmonary problems among quarry workers of stone
Background: Respiratory problem is one of the major health hazards in dustexposed workers; it is a major cause of morbidity and mortality all over the world. Objective: To determine the prevalence of respiratory problems and lung function impairment among quarry workers in Ebonyi State, Nigeria. Methods: Respiratory problems and lung
Study on Compressive Strength of Quarry Dust as Fine
With observation of 20% of quarry dust (7 days), the average compressive strength is 29.62 N/mm 2 whereas that for natural sand is 28.44 N/mm 2. For 25% quarry dust, the value increased to 30.81 N/mm 2. Finally, for 30% quarry dust, the strength increased to 32.88 N/mm 2.
(PDF) Geotechnical Properties of Quarry Dust
The olokoro soil and constituent of the stabilization and admixture procedure were studied under varying proportions of both portland cement and quarry dust thus 0% as control on materials and 3%
Introduction to QuarryDust as Partial Replacement
Quarry dust is a waste from the crushing unit which accounts 25%30% of the final product from stone crushing unit and a reason to cause environmental pollution. Quarry dust can be used as an admixture in concrete efficiently to lessen its impact on environment and human. It can also be used as partial replacement of cement in concrete.
The History of Quarrying Disease of the Lungs from Dust
Further analyses carried out since by the Government Chemist give the following results: (i) Dust collected from a ledge eight feet above the floor and directly above the heads of a splitter and hand dresser contained 46.5 per cent. of free silica and 9.5 per cent. of combined silica, and (ii) dust collected at another quarry from a beam nine
MDPI Publisher of Open Access Journals
MDPI Publisher of Open Access Journals
(PDF) IMPACT OF DUST EXPOSURE AMONG STONE
Methods: Crosssectional, descriptive and analytical study was carried out on 100 quarry workers; 36 males and 54 females (age; between 1857 years) who were exposed to stone dust for more than
SILICA DUST, CRYSTALLINE, IN THE FORM OF QUARTZ
Silica dust, crystalline (quartz or crystobalite) 1.3.2 Quartz crystals Quartz has been used for several thousand years in jewellery as a gem stone (e.g. amethyst, citrine), and is used extensively in both the electronics and optical components industries. Electronicgrade quartz is used in electronic circuits, and opticalgrade quartz is used in
Research roundup: autoimmune disease Nature
Research roundup: autoimmune disease. Links between COVID19 and autoimmunity, a better model of coeliac disease, and other highlights from clinical trials and laboratory studies. Laura Vargas
This work is licensed Pulmonary Problems among Quarry
worker had spent working in the quarry industry (i.e., the duration of exposure to the quarry dust): group 1 had <5 years of exposure; group 2 had 5–10 years; group 3 had 10–15 years; and group 4 had >15 years of exposure. All groups were investigated for respiratory problems, past history of respiratory diseases, and lung functions.
Quarry limestone dust as fine aggregate for concrete
Quarry limestone dust as fine aggregate for concrete. Liborio Cavaleri 1, Ruben Paul Borg 2, F. P. La Mantia 1 and Vincenzo Liguori 1. Published under licence by IOP Publishing Ltd IOP Conference Series: Materials Science and Engineering, Volume 442, FIB Conference: Sustainable Concrete: Materials and Structures 10 April , Malta
IMPACT OF DUST EXPOSURE AMONG STONE QUARRY
to dust (Jaber et al., ). Inhalable dust is produced when the stone is cut and by the breaking of the stones on the quarry floor during the transit of the vehicles (Ulm et al., 2004). A particular concern in some quarries is the inhalation of dust containing silica which can lead to silicosis, an irreversible lung disease resulting in
Introduction to QuarryDust as Partial Replacement
Quarry dust is a waste from the crushing unit which accounts 25%30% of the final product from stone crushing unit and a reason to cause environmental pollution. Quarry dust can be used as an admixture in concrete efficiently to lessen its impact on environment and human. It can also be used as partial replacement of cement in concrete.
The History of Quarrying Disease of the Lungs from Dust
THE EFFECT OF SLATE DUST ON THE LUNGS. Evidence was gathered by a Departmental Committee as long ago as 1895 which suggested the possibility that an unduly high deathrate from phthisis experienced by slate workers in Merionethshire was, to some extent, due to inhaling slate dust 1.. The subject remained, however, without
Quarry Dust And Immune Disease bvbasensjofra.be
quarry dust price in malaysia quarry dust and immune disease; Metal Mining Metal Mining Bauxite Iron Ore Lead Ore Silver Ore Gold Ore Manganese Copper. Get price. Disorders of the Immune System Health Encyclopedia Having an allergic reaction is the most common example of an overactive immune system. Silicosis Lung and Airway
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