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Tanaffos، جلد ۱۶، شماره ۴، صفحات ۲۹۵-۳۰۳
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عنوان انگلیسی Risk Evaluation of Construction Workers' Exposure to Silica Dust and the Possible Lung Function Impairments
چکیده انگلیسی مقاله Background: Aerosols generated during construction activities are an integral part of building operations. Considering the nature of materials used in construction activities, respirable dust contains crystalline silica and particulates not otherwise specified (PNOS). Due to lack of data regarding the occupational health status of Iranian construction workers, the objective of this study was to evaluate occupational exposure to silica and to examine their respiratory health status. Materials and Methods: In this cross sectional study, 85 construction workers and 40 controls (without active exposure to construction dust) were studied. The workers’ exposure to PNOS and silica aerosols was monitored by the NIOSH method No.0600 and a new Fourier transform infrared spectroscopy (FTIR)-based method, respectively. All subjects were also monitored for lung function parameters, such as forced expiratory volume/forced vital capacity (FEV1/FVC), peak expiratory flow rate (PEFR), forced expiratory flow (FEF25-75), FVC, and FEV1. Results: The mean exposure of workers to respirable PNOS and silica was 9.8 (0.35) and 0.13 (0.019) mg/m3, respectively. The groups of construction workers showed significant differences in exposure to PNOS (p < 0.001) and silica (P= 0.007). The mean pulmonary function parameters, including FEV1% and FVC%, were significantly lower among construction workers, compared to the control group (p < 0.001 and P= 0.009, respectively). The pulmonary status of 51.8% of construction workers showed moderate restriction, while 4.70% exhibited obstruction. Conclusion: Considering the construction workers' excessive exposure to PNOS and silica, besides depressed lung function parameters, they can be classified as a high-risk group for respiratory diseases.
کلیدواژه‌های انگلیسی مقاله Construction,Crystalline silica,PNOS,Respiratory system
نویسندگان مقاله Elahe Tavakol |
College of Public Health, Shahid Beheshti University of Medical Sciences, Tehran Iran,

Mansour Azari |
Safety Promotion and Injuries Prevention Research Center, College of Public Health, Shahid Beheshti University of Medical Sciences, Tehran, Iran,

Rezvan Zendehdel |
College of Public Health, Shahid Beheshti University of Medical Sciences, Tehran Iran,

Sousan Salehpour |
College of Public Health, Shahid Beheshti University of Medical Sciences, Tehran Iran,

Soheila Khodakrim |
School of Public Health, School of Paramedical Science, Shahid Beheshti University of Medical Sciences, Tehran, Iran,

Saeed Nikoo |
Ministry of Roads & Urban Development, Islamic Republic of Iran .

Behzad Saranjam |
College of Public Health, Shahid Beheshti University of Medical Sciences, Tehran Iran,

نشانی اینترنتی https://www.tanaffosjournal.ir/article_240142_84c40c4844ee69b3d3d4d34169312ae7.pdf
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