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Tanaffos، جلد ۱۰، شماره ۴(autumn)، صفحات ۵۴-۵۹
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| عنوان فارسی |
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| چکیده فارسی مقاله |
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| کلیدواژه‌های فارسی مقاله |
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| عنوان انگلیسی |
Monitoring of Occupational Exposure of Mild Steel Welders to Ozone and Nitrogen Oxides |
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| چکیده انگلیسی مقاله |
Background: Metal Inert Gas (MIG) welding and Tungsten Inert Gas (TIG) welding are widely used for mild steel segments in basic metal industries. Pulmonary problems such as asthma, pulmonary inflammation, hyperresponsiveness of airways and higher susceptibility to infections are reported as the result of occupational exposure of welders to ozone and nitrogen oxides. Potent oxidizing agents like ozone and nitrogen oxides are also reported to be a precursor for respiratory problems and cause lipid peroxidation of membranes. Materials and Methods: A total of 43 nonsmoking MIG and TIG welders and 41 nonsmoking workers without appreciable exposure to any chemicals as the control population were chosen to participate in this study. Occupational exposure to ozone was monitored according to the validated methods. Malondialdehyde (MDA) of blood serum as a biomarker for lipid peroxidation was analyzed using Reverse Phase High Performance Liquid Chromatography. Data obtained from this study were analyzed using t-test, Pearson’s correlation coefficient and multiple regression analysis. Results: A total of 88.4% and 74.4% of welders had exposure to ozone and nitrogen dioxide higher than the permissible limit of occupational exposure, respectively. Generally, exposure of MIG welders to ozone was significantly higher than TIG welders (P=0.006). However, exposure to nitrogen dioxide gas was comparable in both groups. Serum MDA of welders was significantly higher than that of the control group (P=0.001). A significant correlation was detected between ozone exposure and level of serum malondialdehyde. Such correlation was not observed for nitrogen dioxide exposure. Conclusion: Considering the high exposure of welders to ozone and nitrogen dioxide, and higher level of serum malondialdehyde in them compared to controls, risk management is recommended for this group of workers. |
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| کلیدواژه‌های انگلیسی مقاله |
Ozone,Nitrogen oxides,Welding,malondialdehyde |
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| نویسندگان مقاله |
Mansour R. Azar |
School of Public Health, Safety Promotion and
Injury Prevention Research Center, Shahid Beheshti
University of Medical Sciences
Morteza Esmaeilzadeh |
School of Public
Health, Bojnord University of Medical Sciences
Yadollah Mehrabi |
School of Public Health, Shahid Beheshti University
of Medical Sciences
Sousan Salehpour |
National Research Institute of
Tuberculosis and Lung Disease, Tehran, Iran
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| نشانی اینترنتی |
https://www.tanaffosjournal.ir/article_241146_0016483617c9ff69a798841877281086.pdf |
| فایل مقاله |
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| کد مقاله (doi) |
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| زبان مقاله منتشر شده |
en |
| موضوعات مقاله منتشر شده |
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