Bioprocess of Kosa bioaerosols: effect of ultraviolet radiation on airborne bacteria within Kosa (Asian dust)

Journal of Bioscience and Bioengineering
Fumihisa KobayashiYasunobu Iwasaka

Abstract

Kosa (Asian dust) is a well-known weather phenomenon in which aerosols are carried by the westerly winds from inland China to East Asia. Recently, the frequency of this phenomenon and the extent of damage caused have been increasing. The airborne bacteria within Kosa are called Kosa bioaerosols. Kosa bioaerosols have affected ecosystems, human health and agricultural productivity in downwind areas. In order to develop a new and useful bacterial source and to identify the source region of Kosa bioaerosols, sampling, isolation, identification, measurement of ultraviolet (UV) radiation tolerance and experimental simulation of UV radiation conditions were performed during Kosa bioaerosol transportation. We sampled these bioaerosols using a Cessna 404 airplane and a bioaerosol sampler at an altitude of approximately 2900 m over the Noto Peninsula on March 27, 2010. The bioaerosol particles were isolated and identified as Bacillus sp. BASZHR 1001. The results of the UV irradiation experiment showed that the UV radiation tolerance of Kosa bioaerosol bacteria was very high compared with that of a soil bacterium. Moreover, the UV radiation tolerance of Kosa bioaerosol spores was higher than that of soil bacterial spores. This suggested ...Continue Reading

References

Sep 4, 2007·International Journal of Systematic and Evolutionary Microbiology·I J CarrascoA Ventosa
Jan 12, 2008·The Journal of General and Applied Microbiology·Jomkhwan MeerakYasutaka Tahara
Feb 7, 2014·Allergy, Asthma, and Clinical Immunology : Official Journal of the Canadian Society of Allergy and Clinical Immunology·Boying LiuTakayuki Shibamoto

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Citations

Sep 26, 2019·Scientific Reports·Nojood A AalismailCarlos M Duarte
Aug 30, 2017·Frontiers in Microbiology·Satoshi HiraokaWataru Iwasaki
Apr 24, 2020·Scientific Reports·Elena González-TorilÁngeles Aguilera
Oct 24, 2018·International Journal of Environmental Research and Public Health·Zhiguo FangXiuqin Lou

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