Evaluation of bioaerosol populations in Zanjan Zinc Industrial Park
- سال انتشار: 1400
- محل انتشار: بیست دومین کنگره میکروب شناسی ایران (مجازی)
- کد COI اختصاصی: MEDISM22_336
- زبان مقاله: انگلیسی
- تعداد مشاهده: 271
نویسندگان
Assistant professor, Islamic Azad University- Eghlid Branch
چکیده
Background and Aim : Bioaerosols (such as fungi and bacteria) are a group of biological air pollutants that environmental factors and concentration of chemical pollutants effect on their type and populations.Methods : In the present study, three-stations in the Zanjan Zinc Industrial Park are selected and air samples prepared using sampling pump (SKC-Flite ۳) for a period of ۵ min and the flow rate of ۱۴.۳ L/min. The first station at the entrance, the second near the depot site, and the third was selected adjacent to one of the major companies in the zinc industrial park. Results : The lowest and highest concentration of acid and particulate matter was determined in the ۱ and ۳ stations, respectively. Bacteria and fungi in the collected samples grown on nutrient agar and Sabaroud dextrose agar, then isolate populations determined using colony-forming units (CFU/m۳). Subsequently, the microbe types determined using microscopic examination and biochemical methods.The microbial population in the second and third stations were > ۴×۱۰۳ CFU/m۳. The highest number of bacteria in the second station was gram positive coccus. The population of gram positive bacillus was the highest at No. ۳ and No. ۱ stations. At station ۳, the variety and population of fungi species were considerably high compare to the others. The isolates of Penicillium and Aspergillus sp were dominant in the stations ۱ and ۲. Conclusion : The high level of metal particles from the waste depot presented by various microbes is a serious environmental challenge. An appropriate location for waste depot, attention to climate change, and using bioremediation technologies are essential steps to reduce environmental pollutions.کلیدواژه ها
Bacteria, Fungi, Air pollution, Metalمقالات مرتبط جدید
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