Control of Silica Exposure in Foundries
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چکیده
منابع مشابه
Risk of sarcoidosis and seropositive rheumatoid arthritis from occupational silica exposure in Swedish iron foundries: a retrospective cohort study
OBJECTIVE To study the impact of occupational silica exposure on the incidence rates of sarcoidosis and rheumatoid arthritis (RA) in a cohort of exposed workers in Swedish iron foundries. DESIGN The prevalence of sarcoidosis and RA in a cohort of silica exposed workers was compared with the prevalence in the general Swedish population in this register study. A mixed model was used to calculat...
متن کاملAssessment of Occupational Exposure to Dust and Crystalline Silica in Foundries
BACKGROUND The term "crystalline silica" refers to crystallized form of SiO2 and quartz, as the most abundant compound on the earth's crust; it is capable of causing silicosis and lung cancer upon inhaling large doses in the course of occupational exposure. The aim of this study was to assess occupational exposure to dust and crystalline silica in foundries in Pakdasht, Iran. MATERIALS AND ME...
متن کاملTwo Cases of Lung Cancer in Foundry Workers
BACKGROUND Iron and steel foundry workers are exposed to various toxic and carcinogenic substances including crystalline silica, polycyclic aromatic hydrocarbons, and arsenic. Studies have been conducted on lung cancer in iron and steel founding workers and the concentration of crystalline silica in foundries; however, the concentration of crystalline silica and cases of lung cancer in a single...
متن کاملRisk Assessment of Occupational Exposure to Crystalline Silica in Small Foundries in Pakdasht, Iran.
BACKGROUND The term crystallized silica refers to the crystallized form of Sio2 and quartz, the most frequency composition in the earth's crust that can cause silicosis and lung cancer through occupational exposure and inhalation of its large quantities. METHODS Occupational exposure of workers in Pakdasht, Iran, in 2011 was investigated in four different casting processes in small foundries ...
متن کاملWhat makes silica toxic?
Published data suggest that particle charge could be related to its toxicity. Respirable particles containing silica were therefore collected in foundries and their charge measured. These particles carried high levels of positive charge that were related to low humidity. Incubating these particles with pulmonary macrophages from mice produced detectable activities of collagenase, a precursor of...
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تاریخ انتشار 2007