respirable crystalline silica
Exhaled breath condensate: a novel matrix for biological monitoring to assess occupational exposure to respirable crystalline silica
... of respirable crystalline silica (RCS), this has not been analytically feasible in conventional biological ...dissolved silica whilst silica particles of various sizes were present in ...
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Investigation of the Health Effects of Workers Exposed to Respirable Crystalline Silica During Outdoor and Underground Construction Projects in Greece
... Pulmonary function tests, radiological examination and evaluation of radiographs were, also performed. During the examination of the pulmonary function, the majority of the workers were within normal range (61.4%) while ...
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Feasibility of the quantification of respirable crystalline silica by mass on aerosol sampling filters using Raman microscopy
... Airborne respirable crystalline silica (RCS) is a hazard that can affect the health of workers, and more sensitive measurements are needed for the assessment of worker ...Three respirable ...
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An updated review of the genotoxicity of respirable crystalline silica
... RCS. Silica particles need to be internalised into the cell and reach the nucleus where they can either interact with DNA directly, or even interfere with the mechanics of mitotic segregation lead- ing to ...
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Risk Assessment of Workers Exposed to Crystalline Silica Aerosols in the East Zone of Tehran
... to crystalline silica was presented by Rice et ...for respirable crystalline silica was reported to be 19 per one ...and silica-related diseases in the United States has been the ...
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Evaluation of performance characteristic between direct and indirect sampling method for respirable crystaline silica (RCS) exposure in granite quarry
... is Silica, crystalline, by X-ray Difractometer via Filter Deposition[1]; NIOSH Manual Analytical Method ...is Silica, Crystalline by Infrared (KBr pellet)[2]; OSHA ID 142 which is Quartz And ...
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Formative research to reduce mine worker respirable silica dust exposure: a feasibility study to integrate technology into behavioral interventions
... to respirable silica dust. There is a high prevalence of silica in materials mined on many ...of respirable crystalline silica in which workers are ex- posed on a daily basis; ...
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Differential activation of RAW 264.7 macrophages by size-segregated crystalline silica
... in silica con- centrations between these two analyses was necessary because the 50 μg/cm 2 CS concentration completely covered the cells, preventing collection of TEM and live- cell ...The silica ...
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Comparison of non-crystalline silica nanoparticles in IL-1β release from macrophages
... ous) silica particles (provided by Kisker Biotech GmbH & Co, Steinfurt; Germany) with a nominal size of 50 nm (Si50) and 500 nm (Si500) were ...fumed silica (Aerosil 200, Degussa Evonik, Germany) and ...
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The Behavior of Zeta Potential of Silica Suspensions
... vitreous silica samples in aqueous solution, when compared to all the other silica samples inves- ...vitreous silica #100 are bigger (smallest specific sur- face area), than the other forms of ...
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Pulmonary hypertension and vascular remodeling in mice exposed to crystalline silica
... of silica or saline. Crystalline silica was sterilized at 200 °C for 2 h to inactivate endotoxin ...contamination. Silica suspension in sterile ...of crystalline silica ...
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Performance studies of polysulfone based membrane: effect of silica morphology
... Membrane surface modification is one method that can be used to increase hydrophobicity and minimize the fouling problem. The common modification method that used to improve the performance is addition of additive into ...
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Silicosis and silicotuberculosis in mine workers in nagaur, ajmer and bhilwara district in Rajasthan
... of silica dust exposure and sometimes nodules may show ...to silica dust increases risk of tuberculosis infection and aggravation of pre-existing pulmonary ...
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Pulmonary Functions and Health-Related Quality of Life among Silica-Exposed Workers
... occupational silica exposure has also been linked to lung cancer and silica has been classified by the International Agency for Research on Cancer (IARC) as a carcinogenic agent for humans ...the ...
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The Ability of Crystalline and Amorphous Silica from Rice Husk Ash to Perform Quality Hardness for Ceramic Water Filtration Membrane
... including silica and lignin which to protect the seed during the growing ...based silica resources like bentonite, sand and diatomaceous earth rice husk has insignificant amounts of impurity that affect ...
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Role of SOD3 in silica-related lung fibrosis and pulmonary vascular remodeling
... of silica or saline as described previously [25]. Crystalline silica was sterilized at 200 °C for 2 h to inactivate endotoxin ...contamination. Silica suspension in sterile ...of ...
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1055.pdf
... free silica with time and space, and the presence of ...percent respirable free silica collected on a filter depends on the time and spatial changes in the particle concentration and size ...
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Nanomaterials for energy storage
... mesoporous silica materials, it is still difficult to apply these methods to the preparation of non-silica mesoporous materials, such as mesoporous carbon and mesoporous transition metal ...
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Investigation of Thermal and Acoustical Properties of Hybrid Nanofluid (Ag SiO2)
... Collect the sugarcane bagasse from the sugarcane shop (or) sugarcane industry. Bring sugarcane bagasse and washed with distilled water to remove dust and dirt which are present on it, then dried it. The washed and dried ...
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Effects of Silica Morphology on Emulsion Paint Properties Using Rice Husk Ash and Silica Flour as Pigment Extenders
... The weight per litre values (specific gravity) of RHAWEP, SFWEP and CCWEP are presented in Table 3 SFWEP had the highest values in the range of 1.17-1.23 while RHAWEP was next with values ranging between 1.00 and 1.19 ...
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