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Assessment 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 occup...

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Autores principales: Omidianidost, Ali, Ghasemkhani, Mehdi, Azari, Mansour R., Golbabaei, Farideh
Formato: Online Artículo Texto
Lenguaje:English
Publicado: National Research Institute of Tuberculosis and Lung Disease 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4745190/
https://www.ncbi.nlm.nih.gov/pubmed/26858767
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author Omidianidost, Ali
Ghasemkhani, Mehdi
Azari, Mansour R.
Golbabaei, Farideh
author_facet Omidianidost, Ali
Ghasemkhani, Mehdi
Azari, Mansour R.
Golbabaei, Farideh
author_sort Omidianidost, Ali
collection PubMed
description 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 METHODS: In this study, airborne dust samples were collected on PVC filters (37 mm diameter, 0.8 mm pore size), by using a sampling pump and open face cyclone at a flow rate of 2.2 l/min for a maximum volume of 800 liters. For determining crystalline silica spectrometry was used according to the National Institute of Occupational Safety and Health (NIOSH) method No. 7601 for analysis of samples. RESULTS: Results showed that crystalline silica concentration was higher than NIOSH and the American Conference of Government Industrial Hygienist (ACGIH) allowed extent (0.025 mg/m(3)). Concentration of crystalline silica was 0.02–0.1 mg/m(3). Total dust concentration average was higher than the allowed extent by Permissible Exposure Limit (PEL) of the Occupational Safety and Health Administration (OSHA). CONCLUSION: It is essential to take necessary measures to control crystalline silica dust regarding the fact that 50% of workers are exposed to higher than the allowed extent.
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spelling pubmed-47451902016-02-08 Assessment of Occupational Exposure to Dust and Crystalline Silica in Foundries Omidianidost, Ali Ghasemkhani, Mehdi Azari, Mansour R. Golbabaei, Farideh Tanaffos Original Article 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 METHODS: In this study, airborne dust samples were collected on PVC filters (37 mm diameter, 0.8 mm pore size), by using a sampling pump and open face cyclone at a flow rate of 2.2 l/min for a maximum volume of 800 liters. For determining crystalline silica spectrometry was used according to the National Institute of Occupational Safety and Health (NIOSH) method No. 7601 for analysis of samples. RESULTS: Results showed that crystalline silica concentration was higher than NIOSH and the American Conference of Government Industrial Hygienist (ACGIH) allowed extent (0.025 mg/m(3)). Concentration of crystalline silica was 0.02–0.1 mg/m(3). Total dust concentration average was higher than the allowed extent by Permissible Exposure Limit (PEL) of the Occupational Safety and Health Administration (OSHA). CONCLUSION: It is essential to take necessary measures to control crystalline silica dust regarding the fact that 50% of workers are exposed to higher than the allowed extent. National Research Institute of Tuberculosis and Lung Disease 2015 /pmc/articles/PMC4745190/ /pubmed/26858767 Text en Copyright© 2015 National Research Institute of Tuberculosis and Lung Disease This work is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported License which allows users to read, copy, distribute and make derivative works for non-commercial purposes from the material, as long as the author of the original work is cited properly.
spellingShingle Original Article
Omidianidost, Ali
Ghasemkhani, Mehdi
Azari, Mansour R.
Golbabaei, Farideh
Assessment of Occupational Exposure to Dust and Crystalline Silica in Foundries
title Assessment of Occupational Exposure to Dust and Crystalline Silica in Foundries
title_full Assessment of Occupational Exposure to Dust and Crystalline Silica in Foundries
title_fullStr Assessment of Occupational Exposure to Dust and Crystalline Silica in Foundries
title_full_unstemmed Assessment of Occupational Exposure to Dust and Crystalline Silica in Foundries
title_short Assessment of Occupational Exposure to Dust and Crystalline Silica in Foundries
title_sort assessment of occupational exposure to dust and crystalline silica in foundries
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4745190/
https://www.ncbi.nlm.nih.gov/pubmed/26858767
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