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Occupational Exposure to Respirable Dust, Crystalline Silica and Its Pulmonary Effects among Workers of a Cement Factory in Kermanshah, Iran

BACKGROUND: Although the main hazard in cement processing is dust, and its effects on pulmonary function constitute the most important group of occupational diseases in this industry, evidence for association between exposure to cement dust and pulmonary function has not been conclusive. This study...

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Autores principales: Omidianidost, Ali, Gharavandi, Sasan, Azari, Mansour R., Hashemian, Amir Hossein, Ghasemkhani, Mehdi, Rajati, Fatemeh, Jabari, Mehdi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: National Research Institute of Tuberculosis and Lung Disease 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7230124/
https://www.ncbi.nlm.nih.gov/pubmed/32440304
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author Omidianidost, Ali
Gharavandi, Sasan
Azari, Mansour R.
Hashemian, Amir Hossein
Ghasemkhani, Mehdi
Rajati, Fatemeh
Jabari, Mehdi
author_facet Omidianidost, Ali
Gharavandi, Sasan
Azari, Mansour R.
Hashemian, Amir Hossein
Ghasemkhani, Mehdi
Rajati, Fatemeh
Jabari, Mehdi
author_sort Omidianidost, Ali
collection PubMed
description BACKGROUND: Although the main hazard in cement processing is dust, and its effects on pulmonary function constitute the most important group of occupational diseases in this industry, evidence for association between exposure to cement dust and pulmonary function has not been conclusive. This study was performed with the aim to evaluate the impact of cement dust in the workplace on decreasing pulmonary function parameters among the workers. MATERIALS AND METHODS: In this cross-sectional study 283 workers were studied, of which 140 workers were considered as exposed group and 143 workers as non-exposed group. Fifty samples of respirable dust were collected from breathing zone of workers in different sections of cement factory. Visible absorption spectrophotometry was used according to the NIOSH Method 7601 to measure crystalline silica content of reparable dust samples. Spirometry test was also applied to assess workers’ pulmonary function parameters. RESULTS: Respirable dust concentration was in the range of 1.77 to 6.12 mg/m(3). The concentration of crystalline silica in all units was higher than the Threshold Limit Value (TLV) (0.025 mg / m(3)). There were a significant difference in the Peak Expiratory Flow (PEF) parameter among workers in the two exposed and non-exposed groups to respirable dust (P= 0.017). In other parameters of pulmonary function (FVC, FEV(1), FEF (25–75), FEV(1)/FVC %), there were no significant differences between the two groups under study (P= 0.45, P= 0.14, P= 0.29 and P= 0.23, respectively). CONCLUSION: The findings of this study have provided an evidence to confirm the hypothesis that exposure to cement dust can cause complication in PEF parameter of cement industry workers.
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spelling pubmed-72301242020-05-21 Occupational Exposure to Respirable Dust, Crystalline Silica and Its Pulmonary Effects among Workers of a Cement Factory in Kermanshah, Iran Omidianidost, Ali Gharavandi, Sasan Azari, Mansour R. Hashemian, Amir Hossein Ghasemkhani, Mehdi Rajati, Fatemeh Jabari, Mehdi Tanaffos Original Article BACKGROUND: Although the main hazard in cement processing is dust, and its effects on pulmonary function constitute the most important group of occupational diseases in this industry, evidence for association between exposure to cement dust and pulmonary function has not been conclusive. This study was performed with the aim to evaluate the impact of cement dust in the workplace on decreasing pulmonary function parameters among the workers. MATERIALS AND METHODS: In this cross-sectional study 283 workers were studied, of which 140 workers were considered as exposed group and 143 workers as non-exposed group. Fifty samples of respirable dust were collected from breathing zone of workers in different sections of cement factory. Visible absorption spectrophotometry was used according to the NIOSH Method 7601 to measure crystalline silica content of reparable dust samples. Spirometry test was also applied to assess workers’ pulmonary function parameters. RESULTS: Respirable dust concentration was in the range of 1.77 to 6.12 mg/m(3). The concentration of crystalline silica in all units was higher than the Threshold Limit Value (TLV) (0.025 mg / m(3)). There were a significant difference in the Peak Expiratory Flow (PEF) parameter among workers in the two exposed and non-exposed groups to respirable dust (P= 0.017). In other parameters of pulmonary function (FVC, FEV(1), FEF (25–75), FEV(1)/FVC %), there were no significant differences between the two groups under study (P= 0.45, P= 0.14, P= 0.29 and P= 0.23, respectively). CONCLUSION: The findings of this study have provided an evidence to confirm the hypothesis that exposure to cement dust can cause complication in PEF parameter of cement industry workers. National Research Institute of Tuberculosis and Lung Disease 2019-02 /pmc/articles/PMC7230124/ /pubmed/32440304 Text en Copyright© 2019 National Research Institute of Tuberculosis and Lung Disease http://creativecommons.org/licenses/by/3.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Article
Omidianidost, Ali
Gharavandi, Sasan
Azari, Mansour R.
Hashemian, Amir Hossein
Ghasemkhani, Mehdi
Rajati, Fatemeh
Jabari, Mehdi
Occupational Exposure to Respirable Dust, Crystalline Silica and Its Pulmonary Effects among Workers of a Cement Factory in Kermanshah, Iran
title Occupational Exposure to Respirable Dust, Crystalline Silica and Its Pulmonary Effects among Workers of a Cement Factory in Kermanshah, Iran
title_full Occupational Exposure to Respirable Dust, Crystalline Silica and Its Pulmonary Effects among Workers of a Cement Factory in Kermanshah, Iran
title_fullStr Occupational Exposure to Respirable Dust, Crystalline Silica and Its Pulmonary Effects among Workers of a Cement Factory in Kermanshah, Iran
title_full_unstemmed Occupational Exposure to Respirable Dust, Crystalline Silica and Its Pulmonary Effects among Workers of a Cement Factory in Kermanshah, Iran
title_short Occupational Exposure to Respirable Dust, Crystalline Silica and Its Pulmonary Effects among Workers of a Cement Factory in Kermanshah, Iran
title_sort occupational exposure to respirable dust, crystalline silica and its pulmonary effects among workers of a cement factory in kermanshah, iran
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7230124/
https://www.ncbi.nlm.nih.gov/pubmed/32440304
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