Volume 20, Issue 6 (1-2022)                   TB 2022, 20(6): 15-32 | Back to browse issues page

Research code: 6911
Ethics code: IR.SSU.SPH.REC.1398.132

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Salaree M, Ehrampoush M H, Teimouri F, Sadeh M, Madadizadeh F, Eslami G, et al . Investigation of the Bacterial Bioaerosols in the Air of the Wastewater Treatment Plant of Jahanabad Industrial Town of Meybod. TB. 2022; 20 (6) :15-32
URL: http://tbj.ssu.ac.ir/article-1-3264-en.html
Environmental Science and Technology Research Center, Department of Environmental Health Engineering, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran. , ebrahimi20007@gmail.com
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Investigation of the Bacterial Bioaerosols in the Air of the Wastewater Treatment Plant of Jahanabad Industrial Town of Meybod
Mohammad Salaree (M.Sc.)1, Mohammad Hasan Ehrampoush (Ph.D.)2, Fahimeh Teimouri (Ph.D.)3,                    Maryam Sadeh (Ph.D.)4, Farzan Madadizadeh (Ph.D.)5, Gilda Eslami (Ph.D.)6, Zahra Sotanianzadeh (Ph.D.)7, Ali Asghar Ebrahimi (Ph.D.)8
1.M.Sc. Student of Environmental Health Engineering, School of public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
2.Professor, Environmental Science and Technology Research Center, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
3.Assistant Professor, Environmental Science and Technology Research Center, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
4.Assistant Professor, Department of laboratory sciences, School of Paramedicins, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
5.Assistant Professor, Departments of biostatistics and Epidemiology, School of public health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
6.Associate Professor, Research Center for Molecular Identification of Food Hazards, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
7.M.Sc. Environmental Science and Technology Research Center, School of Public Health, Shahid Sadoughi Universityof Medical Sciences, Yazd, Iran.
8.Corresponding Author:Associate Professor, Environmental Science and Technology Research Center, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
 Email: ebrahimi20007[at]ssu.ac.ir                                 Tel:09132679641

Introduction: In recent decades, with the emergence of new industrial activities and an increase in waste production, industries require the existence of treatment equipment and sanitation. The equipment sometimes spreads infectious microorganisms into the air. These industries include waste recycling industries and wastewater treatment plants. Bioaerosols are produced at different stages of the wastewater treatment process, especially in processes, such as mobile mechanisms and aeration. This study aimed to investigate the bacterial bioaerosols in the air of the wastewater treatment plant in Jahanabad industrial town of Meybod.
Methods: In this study, air sampling was performed from different units of the treatment plant and indoor air. The plates were placed in an incubator for 24-48 hours at a temperature of 35-37 °C. Then the number of bacterial colonies grown on the culture media was counted and recorded as CFU/m3.
Results: The results showed that the mean population of bacterial aerosols was higher in summer than in spring. Moreover, the highest bacterial population was observed in spring in indoor air with mean value of 187.58±13.41 CFU/m3 and in summer in an equalization unit with mean value of 202.89±12.11 CFU/m3.
Conclusion: The study indicated that the number of bacterial bioaerosols increases in warm seasons. Also, the equalization unit has a high ability to produce bacterial bioaerosols. Moreover, increasing the distance from the source of contamination causes a significant reduction in the number of bacterial bioaerosols.

Keywords: Bioaerosol, Industrial Wastewater, Bacteria, Active Sampling
Conflict of interest: The authors declared that there is no Conflict interest

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Type of Study: Research | Subject: Special
Received: 2021/09/20 | Accepted: 2021/11/2 | Published: 2022/01/30

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