SPM and fungal spores in the ambient air of west Korea during the Asian dust (Yellow sand) period

Yeo, Hwan-Goo; Kim, Jong-Ho

doi:10.1016/s1352-2310(02)00672-6

Cited by 85 publications

(49 citation statements)

References 27 publications

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“…Hua et al (2007) suggested the possibility of long-range transport of microorganism considering the highly similar genetic identities of dust sample collected at Hiroshima, Japan and Dunhuang, China. Maki et al (2008) and Kakikawa et al (2008), comparing their results with measurements at Korea and Taiwan (Wu et al, 2004;Yeo and Kim 2002), suggested long-range transport of microorganisms (members of the genus Bacillus, Rhodococcus, Staphylococcus, and others). Kobayashi et al (2008), on the basis of balloon-borne particulate collection made at Kanazawa, Japan, pointed out that Bacillus cereus and Pycnoporus sp.…”

Section: Discussionmentioning

confidence: 94%

Mixture of Kosa (Asian dust) and bioaerosols detected in the atmosphere over the Kosa particles source regions with balloon-borne measurements: possibility of long-range transport

Iwasaka

Shi

Yamada

et al. 2009

Air Qual Atmos Health

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Long-range transport of atmospheric microbiota with Asian dust (Kosa) particles is of great concern in Northeast Asia in view of the health effect of Kosa particles on human being, disturbance of ecosystems caused through invasion of new microbe, contribution of microorganisms to biogeochemical cycle on global/regional scales, and others. Information on atmospheric microbes over the desert areas has been desired for a long time. Detection of atmospheric microbiota on the desert regions, on the base of balloon-borne measurements, has been made at Dunhuang, China (40°00′ N, 94°30′ E; east end of Taklamakan desert) in the summer of 2007. The measurements showed that microbiota mixed internally with Kosa particles were frequently floating from the ground to about 2-km heights (above sea level), and possible long-range transport of atmospheric microbiota with dust particles taking local circulations is strongly suggested, causing active mixing of atmospheric dust over the Taklamakan desert from the ground to the free troposphere where westerly jet dominates (Iwasaka et al. in J Geophys Res 108:8652, 2003a, J Geophys Res 108:8644, b). The concentration of the mixed particles of Kosa and microbiota having a size larger than about 1 μm in diameter is estimated to be about 1 particle/ cm 3 at those heights on the basis of measurements of particle concentration with an optical particle counter and analysis of particles having fluorescence light due to dye of DAPI (4′6-diamidino-2 phenylindole) with an epifluorescence microscope. The mixing situation of microbiota and Kosa particles is the important factor controlling atmospheric lifetime of floating microbiota, since the mixing state certainly can protect microbiota from stressful environments [dryness, solar ultraviolet (UV) radiation, low temperature] in the atmosphere, and therefore, it is useful to discuss the data of the first description of microbiota in the atmosphere on the Taklamakan desert.Keywords Dust particle . Microbiota (microorganism) . Desert areas in China . Balloon-borne measurement .

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Section: Discussionmentioning

confidence: 94%

Mixture of Kosa (Asian dust) and bioaerosols detected in the atmosphere over the Kosa particles source regions with balloon-borne measurements: possibility of long-range transport

Iwasaka

Shi

Yamada

et al. 2009

Air Qual Atmos Health

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“…We document the species composition and temporal shift of fungal diversity over a two-month span (April-May) at a single site in Seoul, Korea. Springtime in Korea is a critical period because it is one of yearly peaks of fungal spore concentration and Asian dust storm events (Yeo and Kim, 2002). By elucidating airborne fungal diversity, we will gain insight into its role in ecology and human health in Korea.…”

Section: Introductionmentioning

confidence: 99%

Identifying airborne fungi in Seoul, Korea using metagenomics

Fong

Park

et al. 2014

J Microbiol.

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Fungal spores are widespread and common in the atmosphere. In this study, we use a metagenomic approach to study the fungal diversity in six total air samples collected from April to May 2012 in Seoul, Korea. This springtime period is important in Korea because of the peak in fungal spore concentration and Asian dust storms, although the year of this study (2012) was unique in that were no major Asian dust events. Clustering sequences for operational taxonomic unit (OTU) identification recovered 1,266 unique OTUs in the combined dataset, with between 223-396 OTUs present in individual samples. OTUs from three fungal phyla were identified. For Ascomycota, Davidiella (anamorph: Cladosporium) was the most common genus in all samples, often accounting for more than 50% of all sequences in a sample. Other common Ascomycota genera identified were Alternaria, Didymella, Khuskia, Geosmitha, Penicillium, and Aspergillus. While several Basidiomycota genera were observed, Chytridiomycota OTUs were only present in one sample. Consistency was observed within sampling days, but there was a large shift in species composition from Ascomycota dominant to Basidiomycota dominant in the middle of the sampling period. This marked change may have been caused by meteorological events. A potential set of 40 allergyinducing genera were identified, accounting for a large proportion of the diversity present (22.5-77.2%). Our study identifies high fungal diversity and potentially high levels of fungal allergens in springtime air of Korea, and provides a good baseline for future comparisons with Asian dust storms.

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“…The importance of research on these bioaerosols increased after the bioterrorism incidents that occurred in the US during 2001. However, practical measurements of the concentration of bioaerosols and the development of control methods against them remain inadequate (Yeo and Kim, 2002;Menetrez et al, 2007;Lee et al, 2008a;Lee et al, 2008b;Lee et al, 2011). Several studies on the measurements of bioaerosols in outdoor and indoor environments, including schools and health care facilities, were reported in 2007 and 2008 (Godwin and Batterman, 2007;Kim and Kim, 2007;Menetrez et al, 2007;Fang et al, 2008;Zuraimi and Than, 2008); however, during the influenza A H1N1 outbreaks in 2009, there were few published reports on the practical monitoring of airborne microorganisms in public facilities.…”

Section: Introductionmentioning

confidence: 99%

Bacterial Bioaerosol Concentrations in Public Restroom Environments

Lee

Hong

Lee

et al. 2012

Aerosol Air Qual. Res.

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The number concentrations of total culturable bacterial bioaerosols in seven public restroom environments were measured via a standard measurement method provided by the Ministry of Environment of the Republic of Korea. Outdoor bioaerosols were also measured to compare with data collected in public restrooms. The measurements were conducted for one year, with varying concentrations of airborne bacterial bioaerosols observed in public restrooms. The effect of the number of users on the concentration of bioaerosols in public restrooms was also analyzed. The experimental results provided useful and basic information for the study and development of control methods against bioaerosols in public restrooms.

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SPM and fungal spores in the ambient air of west Korea during the Asian dust (Yellow sand) period

Cited by 85 publications

References 27 publications

Mixture of Kosa (Asian dust) and bioaerosols detected in the atmosphere over the Kosa particles source regions with balloon-borne measurements: possibility of long-range transport

Mixture of Kosa (Asian dust) and bioaerosols detected in the atmosphere over the Kosa particles source regions with balloon-borne measurements: possibility of long-range transport

Identifying airborne fungi in Seoul, Korea using metagenomics

Bacterial Bioaerosol Concentrations in Public Restroom Environments

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