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Xie W, Kojima T, Matsusaki H, Zhang D. Aerosol soluble proteins in Asian dust in southwestern Japan. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 945:174086. [PMID: 38908591 DOI: 10.1016/j.scitotenv.2024.174086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2024] [Revised: 06/11/2024] [Accepted: 06/16/2024] [Indexed: 06/24/2024]
Abstract
Aerosol proteins, as core biological components of bioaerosols, are garnering increasing attention due to their environmental significance, including their roles in atmospheric processes and associated health risks. However, observational data on the proteins are very limited, leaving their distribution and variation in the atmosphere poorly understood. To investigate the long-distance transport of proteins with Asian dust in the Northern Hemisphere middle latitude westerlies to remote downwind areas, we quantified the soluble proteins in aerosol particles, referred to as aerosol soluble proteins (ASPs), collected in the coastal city of Kumamoto, Japan, during the spring of 2023, when three dust events occurred. The concentration of ASPs ranged from 0.22 to 1.68 μg m-3, with an average concentration of 0.73 ± 0.36 μg m-3 under dust conditions and 0.31 ± 0.05 μg m-3 under non-dust conditions. During the dust periods, the largest concentration of ASPs (1.68 μg m-3) coincided with the peak concentration of suspended particulate matter, and the concentration strongly correlated with the mass concentration of particles larger than 2.5 μm, indicating a close dependence of ASPs on dust particles. Primary estimations indicated a dry deposition flux of ASPs at approximately 1.10 ± 0.87 mg m-2 d-1 under the dust conditions. These results prove that Asian dust efficiently transports proteins, facilitating their dispersion in the atmosphere.
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Affiliation(s)
- Wenwen Xie
- Faculty of Environmental and Symbiotic Sciences, Prefectural University of Kumamoto, Kumamoto 862-8502, Japan
| | - Tomoko Kojima
- Faculty of Advanced Science and Technology, Kumamoto University, Kumamoto 860-8555, Japan
| | - Hiromi Matsusaki
- Faculty of Environmental and Symbiotic Sciences, Prefectural University of Kumamoto, Kumamoto 862-8502, Japan
| | - Daizhou Zhang
- Faculty of Environmental and Symbiotic Sciences, Prefectural University of Kumamoto, Kumamoto 862-8502, Japan.
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Kang S, Lee JY, Cho KS. Implications of PM 2.5 chemical composition in modulating microbial community dynamics during spring in Seoul. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 348:123834. [PMID: 38518971 DOI: 10.1016/j.envpol.2024.123834] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 03/16/2024] [Accepted: 03/19/2024] [Indexed: 03/24/2024]
Abstract
Particulate matter with an aerodynamic diameter of 2.5 μm or less (PM2.5) harbors a diverse microbial community. To assess the ecological dynamics and potential health risks associated with airborne microorganisms, it is crucial to understand the factors influencing microbial communities within PM2.5. This study investigated the influence of abiotic parameters, including air pollutants, PM2.5 chemical composition (water-soluble ions and organics), and meteorological variables, on microbial communities in PM2.5 samples collected in Seoul during the spring season. Results revealed a significant correlation between air pollutants and water-soluble ions of PM2.5 with microbial α-diversity indices. Additionally, air pollutants exerted a dominant effect on the microbial community structure, with stronger correlations observed for fungi than bacteria, whereas meteorological variables including temperature, pressure, wind speed, and humidity exerted a limited influence on fungal α-diversity. Furthermore, the results revealed specific water-soluble ions, such as SO42-, NO3-, and NH4+, as important factors influencing fungal α-diversity, whereas K+ negatively correlated with both microbial α-diversity. Moreover, PM2.5 microbial diversity was affected by organic compounds within PM2.5, with fatty acids exhibited a positive correlation with fungal diversity, while dicarboxylic acids exhibited a negative correlation with it. Furthermore, network analysis revealed direct links between air pollutants and dominant bacterial and fungal genera. The air pollutants exhibited a strong correlation with bacterial genera, such as Arthrospira and Clostridium, and fungal genera, including Aureobasidium and Cladosporium. These results will contribute to our understanding of the ecological dynamics of airborne microorganisms and provide insights into the potential risks associated with PM2.5 exposure.
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Affiliation(s)
- Sookyung Kang
- Department of Environmental Science and Engineering, Ewha Womans University, Seoul, 03760, Republic of Korea
| | - Ji Yi Lee
- Department of Environmental Science and Engineering, Ewha Womans University, Seoul, 03760, Republic of Korea
| | - Kyung-Suk Cho
- Department of Environmental Science and Engineering, Ewha Womans University, Seoul, 03760, Republic of Korea.
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Roy D, Kim J, Lee M, Park J. Adverse impacts of Asian dust events on human health and the environment-A probabilistic risk assessment study on particulate matter-bound metals and bacteria in Seoul, South Korea. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 875:162637. [PMID: 36889412 DOI: 10.1016/j.scitotenv.2023.162637] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 02/13/2023] [Accepted: 03/01/2023] [Indexed: 06/18/2023]
Abstract
This study aimed to assess the impact of Asian dust (AD) on the human health and the environment. Particulate matter (PM) and PM-bound trace elements and bacteria were examined to determine the chemical and biological hazards associated with AD days and compared with non-AD days in Seoul. On AD days, the mean PM10 concentration was ∼3.5 times higher than that on non-AD days. Elements generated from the Earth's crust (Al, Fe, and Ca) and anthropogenic sources (Pb, Ni, and Cd) were identified as major contributors to coarse and fine particles, respectively. During AD days, the study area was recognized as "severe" for pollution index and pollution load index levels, and "moderately to heavily polluted" for geoaccumulation index levels. The potential cancer risk (CR) and non-CR were estimated for the dust generated during AD events. On AD days, total CR levels were significant (in 1.08 × 10-5-2.22 × 10-5), which were associated with PM-bound As, Cd, and Ni. In addition, inhalation CR was found to be similar to the incremental lifetime CR levels estimated using the human respiratory tract mass deposition model. In a short exposure duration (14 days), high PM and bacterial mass deposition, significant non-CR levels, and a high presence of potential respiratory infection-causing pathogens (Rothia mucilaginosa) were observed during AD days. Significant non-CR levels were observed for bacterial exposure, despite insignificant levels of PM10-bound elements. Therefore, the substantial ecological risk, CR, and non-CR levels for inhalation exposure to PM-bound bacteria, and the presence of potential respiratory pathogens, indicate that AD events pose a significant risk to both human lung health and the environment. This study provides the first comprehensive examination of significant non-CR levels for bacteria and carcinogenicity of PM-bound metals during AD events.
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Affiliation(s)
- Debananda Roy
- Department of Civil and Environmental Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Jayun Kim
- Department of Civil and Environmental Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Minjoo Lee
- Department of Civil and Environmental Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Joonhong Park
- Department of Civil and Environmental Engineering, Yonsei University, Seoul 03722, Republic of Korea.
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Xie W, Fan C, Qi J, Li H, Dong L, Hu W, Kojima T, Zhang D. Decrease of bioaerosols in westerlies from Chinese coast to the northwestern Pacific: Case data comparisons. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 864:161040. [PMID: 36572311 DOI: 10.1016/j.scitotenv.2022.161040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 12/12/2022] [Accepted: 12/15/2022] [Indexed: 06/17/2023]
Abstract
The dissemination of bioaerosols in the westerly wind from the Asian continent to the northwestern Pacific constantly links the land and marine ecosystems. Several observation campaigns targeting bioaerosols were conducted in the coastal city Qingdao of China (QD), at a coast site of Kumamoto in southwestern Japan (KM), and in the northwestern Pacific (NP) between 2014 and 2016. We compared the concentration of bioaerosols in the range of 1.1-7.0 μm obtained in those campaigns to investigate their variation in the westerly wind. The substantial influence of westerlies on bioaerosol concentration was confirmed in the three areas. In the case of non-dust air, the arrival of the continental air led to a 29 % decrease of bioaerosols at KM while a 57 % increase at NP, indicating that the concentration in non-dust air was lower than the local level in the island air while higher than that in the remote marine air. In case of dust occurrence, bioaerosols in the air decreased with the distance from the Asian continent at KM and NP consecutively, and the arrival of the air caused a 2-fold increase at KM and a 1.7-fold increase at NP. The relative concentration increase rate of bioaerosols (IRRC), defined as the ratio of the increment of bioaerosols caused by long-distance transported air to the local level in each area, decreased rapidly after the air left the continent in the dust cases, which is similar to the decrease of the dry deposition flux of dust reported in the literature. This result indicates that the reduction of bioaerosols in the dusty air was likely dominated by the removal of bioaerosols attached to dust particles.
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Affiliation(s)
- Wenwen Xie
- Faculty of Environmental and Symbiotic Sciences, Prefectural University of Kumamoto, Kumamoto 862-8502, Japan
| | - Chunlan Fan
- Faculty of Environmental and Symbiotic Sciences, Prefectural University of Kumamoto, Kumamoto 862-8502, Japan
| | - Jianhua Qi
- Key Laboratory of Marine Environment and Ecology, Ministry of Education, Ocean University of China, Qingdao 266100, China; Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266100, China.
| | - Hongtao Li
- Key Laboratory of Marine Environment and Ecology, Ministry of Education, Ocean University of China, Qingdao 266100, China
| | - Lijie Dong
- Key Laboratory of Marine Environment and Ecology, Ministry of Education, Ocean University of China, Qingdao 266100, China
| | - Wei Hu
- Institute of Surface-Earth System Science, School of Earth System Science, Tianjin University, Tianjin 300072, China; Faculty of Environmental and Symbiotic Sciences, Prefectural University of Kumamoto, Kumamoto 862-8502, Japan
| | - Tomoko Kojima
- Department Earth and Environmental Science, Faculty of Advanced Science and Technology, Kumamoto University, Kumamoto 860-8555, Japan
| | - Daizhou Zhang
- Faculty of Environmental and Symbiotic Sciences, Prefectural University of Kumamoto, Kumamoto 862-8502, Japan.
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Vergadi E, Rouva G, Angeli M, Galanakis E. Infectious Diseases Associated with Desert Dust Outbreaks: A Systematic Review. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19116907. [PMID: 35682493 PMCID: PMC9180817 DOI: 10.3390/ijerph19116907] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 05/31/2022] [Accepted: 06/02/2022] [Indexed: 02/04/2023]
Abstract
Background: Desert dust outbreaks and dust storms are the major source of particulate matter globally and pose a major threat to human health. We investigated the microorganisms transported with desert dust particles and evaluated their potential impact on human health. Methods: A systematic review of all reports on the association between non-anthropogenic desert dust pollution, dust microorganisms and human health is conducted. Results: In total, 51 articles were included in this review. The affected regions studied were Asia (32/51, 62.7%) followed by Europe (9/51, 17.6%), America (6/51, 11.8%), Africa (4/51, 7.8%) and Australia (1/51, 2.0%). The Sahara Desert was the most frequent source of dust, followed by Asian and American deserts. In 39/51 studies the dust-related microbiome was analyzed, while, in 12/51 reports, the association of desert dust with infectious disease outbreaks was examined. Pathogenic and opportunistic agents were isolated from dust in 24/39 (61.5%) and 29/39 (74.4%) of the studies, respectively. A significant association of dust events with infectious disease outbreaks was found in 10/12 (83.3%) reports. The infectious diseases that were mostly investigated with dust outbreaks were pneumonia, respiratory tract infections, COVID-19, pulmonary tuberculosis and coccidioidomycosis. Conclusions: Desert dust outbreaks are vehicles of a significant number of pathogenic or opportunistic microorganisms and limited data indicate an association between dust events and infectious disease outbreaks. Further research is required to strengthen the correlation between dust events and infectious diseases and subsequently guide preventive public health measures.
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Calderón-Ezquerro MDC, Serrano-Silva N, Brunner-Mendoza C. Aerobiological study of bacterial and fungal community composition in the atmosphere of Mexico City throughout an annual cycle. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 278:116858. [PMID: 33740598 DOI: 10.1016/j.envpol.2021.116858] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 01/26/2021] [Accepted: 02/27/2021] [Indexed: 06/12/2023]
Abstract
The atmosphere as a temporary habitat for airborne microbial communities is a valuable topic to explore, and it is through aerobiological studies that the diversity of biological particles and their release, emission, transport, deposition, and impact are assessed. Specific microorganisms are involved in meteorological processes, and phytosanitary and public health concerns. Airborne microbial composition is related to factors such as geographic region and weather conditions. In this study a metagenomic approach was used to determine the composition of bacterial and fungal communities in the air of two different land-use areas (urban area and semi-rural area), during dry and rainy seasons in Mexico City. Air sampling was carried out with a Hirst-type spore trap, collecting the samples simultaneously in both study areas. Forty-two bioaerosol samples were collected, and the DNA obtained was sequenced using Next-Generation Sequencing. The results indicated that the bacterial communities were represented mainly by the phyla Actinobacteria, Proteobacteria, Firmicutes, Bacteroidetes, Cyanobacteria, and the fungal communities by the phyla Ascomycota followed by Basidiomycota. The evident changes in microbial composition were related more to seasonality than to locality, since both UA and SRA showed a high degree of urbanization, despite some differences in land use. Continuous monitoring of atmospheric bioaerosols is essential to determine the influence of meteorological factors on the composition of the aerial microbiota.
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Affiliation(s)
- María Del Carmen Calderón-Ezquerro
- Departamento de Ciencias Ambientales, Centro de Ciencias de la Atmósfera, Universidad Nacional Autónoma de México (UNAM), Circuito Exterior s/n, Coyoacán, Ciudad Universitaria, 04510, Mexico City, Mexico.
| | - Nancy Serrano-Silva
- Departamento de Ciencias Ambientales, Centro de Ciencias de la Atmósfera, Universidad Nacional Autónoma de México (UNAM), Circuito Exterior s/n, Coyoacán, Ciudad Universitaria, 04510, Mexico City, Mexico
| | - Carolina Brunner-Mendoza
- Departamento de Ciencias Ambientales, Centro de Ciencias de la Atmósfera, Universidad Nacional Autónoma de México (UNAM), Circuito Exterior s/n, Coyoacán, Ciudad Universitaria, 04510, Mexico City, Mexico; Departamento de Microbiología y Parasitología, Facultad de Medicina, UNAM, Circuito Exterior s/n, Coyoacán, Ciudad Universitaria, 04510, Mexico City, Mexico
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Xie W, Li Y, Bai W, Hou J, Ma T, Zeng X, Zhang L, An T. The source and transport of bioaerosols in the air: A review. FRONTIERS OF ENVIRONMENTAL SCIENCE & ENGINEERING 2021; 15:44. [PMID: 33589868 PMCID: PMC7876263 DOI: 10.1007/s11783-020-1336-8] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 11/13/2020] [Accepted: 11/13/2020] [Indexed: 05/13/2023]
Abstract
Recent pandemic outbreak of the corona-virus disease 2019 (COVID-19) has raised widespread concerns about the importance of the bioaerosols. They are atmospheric aerosol particles of biological origins, mainly including bacteria, fungi, viruses, pollen, and cell debris. Bioaerosols can exert a substantial impact on ecosystems, climate change, air quality, and public health. Here, we review several relevant topics on bioaerosols, including sampling and detection techniques, characterization, effects on health and air quality, and control methods. However, very few studies have focused on the source apportionment and transport of bioaerosols. The knowledge of the sources and transport pathways of bioaerosols is essential for a comprehensive understanding of the role microorganisms play in the atmosphere and control the spread of epidemic diseases associated with them. Therefore, this review comprehensively summarizes the up to date progress on the source characteristics, source identification, and diffusion and transport process of bioaerosols. We intercompare three types of diffusion and transport models, with a special emphasis on a widely used mathematical model. This review also highlights the main factors affecting the source emission and transport process, such as biogeographic regions, land-use types, and environmental factors. Finally, this review outlines future perspectives on bioaerosols.
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Affiliation(s)
- Wenwen Xie
- School of Water and Environment, Chang’an University, Xi’an, 710054 China
| | - Yanpeng Li
- School of Water and Environment, Chang’an University, Xi’an, 710054 China
- Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region (Ministry of Education), Chang’an University, Xi’an, 710054 China
| | - Wenyan Bai
- School of Water and Environment, Chang’an University, Xi’an, 710054 China
| | - Junli Hou
- School of Water and Environment, Chang’an University, Xi’an, 710054 China
| | - Tianfeng Ma
- School of Water and Environment, Chang’an University, Xi’an, 710054 China
| | - Xuelin Zeng
- School of Water and Environment, Chang’an University, Xi’an, 710054 China
| | - Liyuan Zhang
- School of Water and Environment, Chang’an University, Xi’an, 710054 China
- Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region (Ministry of Education), Chang’an University, Xi’an, 710054 China
| | - Taicheng An
- Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, School of Environment Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou, 510006 China
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A Review on Airborne Microbes: The Characteristics of Sources, Pathogenicity and Geography. ATMOSPHERE 2020. [DOI: 10.3390/atmos11090919] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Microbes are widespread and have been much more studied in recent years. In this review, we describe detailed information on airborne microbes that commonly originate from soil and water through liquid–air and soil–air interface. The common bacteria and fungi in the atmosphere are the phyla of Firmicutes, Proteobacteria, Bacteroides, Actinobacteria, Cyanobacteria and Ascomycota, Basidiomycota, Chytridiomycota, Rozellomycota that include most pathogens leading to several health problems. In addition, the stability of microbial community structure in bioaerosols could be affected by many factors and some special weather conditions like dust events even can transport foreign pathogens to other regions, affecting human health. Such environments are common for a particular place and affect the nature and interaction of airborne microbes with them. For instance, meteorological factors, haze and foggy days greatly influence the concentration and abundance of airborne microbes. However, as microorganisms in the atmosphere are attached on particulate matters (PM), the high concentration of chemical pollutants in PM tends to restrain the growth of microbes, especially gathering atmospheric pollutants in heavy haze days. Moreover, moderate haze concentration and/or common chemical components could provide suitable microenvironments and nutrition for airborne microorganism survival. In summary, the study reviews much information and characteristics of airborne microbes for further study.
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Hashizume M, Kim Y, Ng CFS, Chung Y, Madaniyazi L, Bell ML, Guo YL, Kan H, Honda Y, Yi SM, Kim H, Nishiwaki Y. Health Effects of Asian Dust: A Systematic Review and Meta-Analysis. ENVIRONMENTAL HEALTH PERSPECTIVES 2020; 128:66001. [PMID: 32589456 PMCID: PMC7319773 DOI: 10.1289/ehp5312] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
BACKGROUND Potential adverse health effects of Asian dust exposure have been reported, but systematic reviews and quantitative syntheses are lacking. OBJECTIVE We reviewed epidemiologic studies that assessed the risk of mortality, hospital admissions, and symptoms/dysfunction associated with exposure to Asian dust. METHODS We performed a systematic search of PubMed and Web of Science to identify studies that reported the association between Asian dust exposure and human health outcomes. We conducted separate meta-analyses using a random-effects model for mortality and hospital admissions for a specific health outcome and assessed pooled estimates for each lag when at least three studies were available for a specific lag. RESULTS We identified 89 studies that met our inclusion criteria for the systematic review, and 21 studies were included in the meta-analysis. The pooled estimates (percentage changes) of mortality from circulatory and respiratory causes for Asian dust days vs. non-Asian dust days were 2.33% [95% confidence interval (CI): 0.76, 3.93] increase at lag 0 and 3.99% (95% CI: 0.08, 8.06) increase at lag 3, respectively. The increased risk for hospital admissions for respiratory disease, asthma, and pneumonia peaked at lag 3 by 8.85% (95% CI: 0.80, 17.55), 14.55% (95% CI: 6.74, 22.94), and 8.51% (95% CI: 2.89, 14.44), respectively. Seven of 12 studies reported reduced peak expiratory flow, and 16 of 21 studies reported increased respiratory symptoms associated with Asian dust exposure. There were substantial variations between the studies in definitions of Asian dust, study designs, model specifications, and confounder controls. DISCUSSION We found evidence of increased mortality and hospital admissions for circulatory and respiratory events. However, the number of studies included in the meta-analysis was not large and further evidences are merited to strengthen our conclusions. Standardized protocols for epidemiological studies would facilitate interstudy comparisons. https://doi.org/10.1289/EHP5312.
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Affiliation(s)
- Masahiro Hashizume
- Department of Global Health Policy, Graduate School of Medicine, University of Tokyo, Tokyo, Japan
- School of Tropical Medicine and Global Health, Nagasaki University, Nagasaki, Japan
- Institute of Tropical Medicine, Nagasaki University, Nagasaki, Japan
| | - Yoonhee Kim
- Department of Global Environmental Health, Graduate School of Medicine, University of Tokyo, Tokyo, Japan
| | - Chris Fook Sheng Ng
- School of Tropical Medicine and Global Health, Nagasaki University, Nagasaki, Japan
| | - Yeonseung Chung
- Department of Mathematical Sciences, Korea Advanced Institute of Science and Technology, Daejeon, South Korea
| | - Lina Madaniyazi
- School of Tropical Medicine and Global Health, Nagasaki University, Nagasaki, Japan
- Institute of Tropical Medicine, Nagasaki University, Nagasaki, Japan
| | - Michelle L Bell
- School of Forestry and Environmental Studies, Yale University, New Haven, Connecticut, USA
| | - Yue Leon Guo
- Environmental and Occupational Medicine, National Taiwan University (NTU) and NTU Hospital, Taipei, Taiwan
| | - Haidong Kan
- Department of Environmental Health, School of Public Health, Fudan University, Shanghai, China
| | - Yasushi Honda
- Faculty of Health and Sport Sciences, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Seung-Muk Yi
- Graduate School of Public Health, Seoul National University, Seoul, Republic of Korea
| | - Ho Kim
- Graduate School of Public Health, Seoul National University, Seoul, Republic of Korea
| | - Yuji Nishiwaki
- Department of Environmental and Occupational Health, School of Medicine, Toho University, Tokyo, Japan
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Yoo K, Han I, Ko KS, Lee TK, Yoo H, Khan MI, Tiedje JM, Park J. Bacillus-Dominant Airborne Bacterial Communities Identified During Asian Dust Events. MICROBIAL ECOLOGY 2019; 78:677-687. [PMID: 30904989 DOI: 10.1007/s00248-019-01348-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Accepted: 02/18/2019] [Indexed: 06/09/2023]
Abstract
Asian dust (AD) events have received significant attention due to their adverse effects on ecosystems and human health. However, detailed information about airborne pathogens associated with AD events is limited. This study monitored airborne bacterial communities and identified AD-specific bacteria and the potential hazards associated with these bacteria during AD events. Over a 33-month period, 40 air samples were collected under normal atmospheric conditions (non-AD events; n = 34) and during AD events (n = 6). The airborne bacterial communities in the air samples collected during non-AD events (non-AD sample) and AD events (AD sample) were evaluated using both culture-dependent and culture-independent methods. The bacterial diversity increased significantly, along with the 16S rRNA gene copy number, in AD samples (p < 0.05) and was positively correlated with PM10 concentration. High throughput sequencing of the 16S rRNA gene revealed that the relative abundance of the phylum Firmicutes increased substantially in AD samples (44.3 ± 5.0%) compared with non-AD samples (27.8 ± 4.3%). Within the phylum Firmicutes, AD samples included a greater abundance of Bacillus species (almost 23.8%) than non-AD samples (almost 13.3%). Both culture-dependent and culture-independent methods detected common predominant species closely related to Bacillus cereus during AD events. Subsequent multilocus sequence typing (MLST) and enterotoxin gene assays confirmed the presence of virulence factors in B. cereus isolates from AD samples. Furthermore, the abundance of bceT, encoding enterotoxin in B. cereus, was significantly higher in AD samples (p < 0.05). The systematic characterization of airborne bacterial communities in AD samples in this study suggests that B. cereus pose risks to public health.
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Affiliation(s)
- Keunje Yoo
- Department of Civil and Environmental Engineering, Yonsei University, Yonsei-ro 50, Seodaemun-gu, Seoul, South Korea
| | - Il Han
- Department of Civil and Environmental Engineering, Princeton University, Princeton, NJ, 08544, USA
| | - Kwan Soo Ko
- Department of Molecular Cell Biology, Sungkyunkwan University School of Medicine, Suwon, South Korea
| | - Tae Kwon Lee
- Department of Environmental Engineering, Yonsei University, Wonju, South Korea
| | - Hyunji Yoo
- Department of Civil and Environmental Engineering, Yonsei University, Yonsei-ro 50, Seodaemun-gu, Seoul, South Korea
| | - Muhammad Imran Khan
- Department of Civil and Environmental Engineering, Yonsei University, Yonsei-ro 50, Seodaemun-gu, Seoul, South Korea
- Institute of Soil and Environmental Sciences, University of Agriculture, Faisalabad, 38040, Pakistan
| | - James M Tiedje
- Center for Microbial Ecology, Michigan State University, East Lansing, MI, 48824, USA
| | - Joonhong Park
- Department of Civil and Environmental Engineering, Yonsei University, Yonsei-ro 50, Seodaemun-gu, Seoul, South Korea.
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Xu C, Wei M, Chen J, Zhu C, Li J, Xu X, Wang W, Zhang Q, Ding A, Kan H, Zhao Z, Mellouki A. Profile of inhalable bacteria in PM 2.5 at Mt. Tai, China: Abundance, community, and influence of air mass trajectories. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 168:110-119. [PMID: 30384158 DOI: 10.1016/j.ecoenv.2018.10.071] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Revised: 10/18/2018] [Accepted: 10/20/2018] [Indexed: 05/27/2023]
Abstract
Bacteria are ubiquitous in the near-surface atmosphere where they constitute an important component of aerosols with the potential to affect climate change, ecosystems, atmospheric process and human health. Limitation in tracking bacterial diversity accurately has thus far prevented the knowledge of airborne bacteria and their pathogenic properties. We performed a comprehensive assessment of bacterial abundance and diverse community in PM2.5 collected at Mt. Tai, via high-throughput sequencing and real-time PCR. The samples exhibited a high microbial biodiversity and complex chemical composition. The dominating populations were gram-negative bacteria including Burkholderia, Delftia, Bradyrhizobium, and Methylobacterium. The PM mass concentration, chemical composition, bacterial concentration and community structure varied under the influence of different air-mass trajectories. The highest mass concentration of PM2.5 (61 μg m-3) and major chemical components were recorded during periods when marine southeasterly air masses were dominant. The local terrestrial air masses from Shandong peninsula and its adjacent areas harbored highest bacterial concentration loading (602 cells m-3) and more potential pathogens at the site. In contrast, samples influenced by the long-distance air flow from Siberia and Outer Mongolia were found to have a highest richness and diversity as an average, which was also marked by the increase of dust-associated bacteria (Brevibacillus and Staphylococcus). The primary research may serve as an important reference for the environmental microbiologist, health workers, and city planners.
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Affiliation(s)
- Caihong Xu
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP, Fudan Tyndall Centre, Department of Environmental Science & Engineering, Fudan University, Shanghai 200433, China
| | - Min Wei
- Environment Research Institute, School of Environmental Science and Engineering, Shandong University, Ji'nan 250100, China
| | - Jianmin Chen
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP, Fudan Tyndall Centre, Department of Environmental Science & Engineering, Fudan University, Shanghai 200433, China; College of Geography and Environment, Shandong Normal University, Jinan 250100, China; Institute for Climate and Global Change Research, School of Atmospheric Sciences, Nanjing University, Nanjing 210023, Jiangsu, China; School of Public Health, Key Lab of Public Health Safety of the Ministry of Education and NHC Key Laboratory of Health Technology Assessment, Fudan University, Shanghai 200032, China.
| | - Chao Zhu
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP, Fudan Tyndall Centre, Department of Environmental Science & Engineering, Fudan University, Shanghai 200433, China
| | - Jiarong Li
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP, Fudan Tyndall Centre, Department of Environmental Science & Engineering, Fudan University, Shanghai 200433, China
| | - Xianmang Xu
- College of Geography and Environment, Shandong Normal University, Jinan 250100, China
| | - Wenxing Wang
- College of Geography and Environment, Shandong Normal University, Jinan 250100, China
| | - Qingzhu Zhang
- College of Geography and Environment, Shandong Normal University, Jinan 250100, China
| | - Aijun Ding
- Institute for Climate and Global Change Research, School of Atmospheric Sciences, Nanjing University, Nanjing 210023, Jiangsu, China
| | - Haidong Kan
- School of Public Health, Key Lab of Public Health Safety of the Ministry of Education and NHC Key Laboratory of Health Technology Assessment, Fudan University, Shanghai 200032, China
| | - Zhuohui Zhao
- School of Public Health, Key Lab of Public Health Safety of the Ministry of Education and NHC Key Laboratory of Health Technology Assessment, Fudan University, Shanghai 200032, China
| | - Abdelwahid Mellouki
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP, Fudan Tyndall Centre, Department of Environmental Science & Engineering, Fudan University, Shanghai 200433, China; College of Geography and Environment, Shandong Normal University, Jinan 250100, China; Institut de Combustion, Aérothermique, Réactivité et Environnement, CNRS, 45071 Orléans Cedex 02, France
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12
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Park J, Li PF, Ichijo T, Nasu M, Yamaguchi N. Effects of Asian dust events on atmospheric bacterial communities at different distances downwind of the source region. J Environ Sci (China) 2018; 72:133-139. [PMID: 30244740 DOI: 10.1016/j.jes.2017.12.019] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Revised: 11/16/2017] [Accepted: 12/22/2017] [Indexed: 06/08/2023]
Abstract
Aeolian dust particles arising from arid and semiarid zones are known to carry microbes by air currents. The effect of wind-borne bacteria on atmospheric bacterial population at various downwind distances from the dust source regions must be clarified, but has not yet been reported. This study monitored the bacterial abundance and community composition in outdoor aerosol samples in Beijing, China, which is close to the Asian dust source regions, and compared them with the results obtained in a distant region (Osaka, Japan). The Asian dust collected in Beijing contained (4±3)×104bacterial cells/m3, approximately 4 times higher than in Osaka. On 15 April 2015, Beijing experienced severe Asian dust events with a 1000-fold increase in bacterial abundance, relative to non-Asian dust days. Dominant bacterial phyla and classes in Asian dust collected in Beijing were Actinobacteria, Bacilli and Acidobacteria, and the bacterial community composition varied more widely than in Osaka. The bacterial community compositions differed between the Beijing and Osaka dusts, even for the same Asian dust events. These results indicated that aerosol bacterial communities nearer the dust source are more affected by eolian dust than their distant counterparts.
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Affiliation(s)
- Jonguk Park
- Graduate School of Pharmaceutical Sciences, Osaka University, 1-6 Yamada-oka, Suita, Osaka 565-0871, Japan; National Institutes of Biomedical Innovation, Health and Nutrition, 7-6-8 Asagi, Saito, Ibaraki, Osaka 567-0085, Japan.
| | - Pin-Fang Li
- College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China
| | - Tomoaki Ichijo
- Graduate School of Pharmaceutical Sciences, Osaka University, 1-6 Yamada-oka, Suita, Osaka 565-0871, Japan
| | - Masao Nasu
- Graduate School of Pharmaceutical Sciences, Osaka University, 1-6 Yamada-oka, Suita, Osaka 565-0871, Japan; Faculty of Pharmacy, Osaka Ohtani University, 3-11-1 Nishikiori-kita, Tondabayashi, Osaka 584-8540, Japan
| | - Nobuyasu Yamaguchi
- Graduate School of Pharmaceutical Sciences, Osaka University, 1-6 Yamada-oka, Suita, Osaka 565-0871, Japan; Osaka Institute of Public Health, 1-3-69 Nakamichi, Higashinari, Osaka 537-0025, Japan.
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13
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Han TH, Park SH, Chung JY, Jeong HW, Jung J, Lee JI, Hwang YO, Kim IY, Lee JH, Jung K. Detection of Pathogenic Viruses in the Ambient Air in Seoul, Korea. FOOD AND ENVIRONMENTAL VIROLOGY 2018; 10:327-332. [PMID: 29761411 PMCID: PMC7090394 DOI: 10.1007/s12560-018-9348-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Figures] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Accepted: 05/03/2018] [Indexed: 06/08/2023]
Abstract
The possible transport of pathogenic microorganisms during Asian dust events could be an important concern for health workers; however, this is still uncertain owing to a lack of supporting evidence. The present study aimed to investigate the presence of pathogenic microorganisms in air samples collected during the Asian and non-Asian dust periods. Between March and September 2016, air samples were collected at three weather observation stations in Seoul using a high-volume air sampler. Multiplex PCR was performed using the Allplex™ respiratory and gastrointestinal panel assay kits to detect 46 microorganisms. RT-PCR was performed for klassevirus, Aichivirus, and human parechovirus (HPeV) detection. In total, 71 air samples were collected during the Asian (8 samples) and non-Asian (63 samples) dust events. During an Asian dust event, only one human rhinovirus (HRV)-positive air sample was collected on April 23. During the non-Asian dust period, HRV, HPeV, norovirus (NoV), enteroaggregative Escherichia coli (EAEC), enterotoxigenic E. coli (ETEC), and Blastocystis hominis were detected in four, two, one, one, one, and one air samples, respectively. Pathogenic viruses were mostly detected in ambient air samples during the non-Asian dust period, which suggests a possible air-borne transmission of viral pathogens; however, the role of Asian dust in epidemics caused by pathogenic viruses is unclear.
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Affiliation(s)
- Tae-Hee Han
- Department of Diagnostic Laboratory Medicine, SanggyePaik Hospital, Inje University College of Medicine, Seoul, South Korea
| | - Sang-Hun Park
- Department of Microbiology, Seoul Metropolitan Environmental Health Institute, Seoul, South Korea
| | - Ju-Young Chung
- Department of Pediatrics, SanggyePaik Hospital, Inje University College of Medicine, 1342 Dongil-Ro, Nowon-Gu, Seoul, South Korea.
| | - Hyo-Won Jeong
- Department of Microbiology, Seoul Metropolitan Environmental Health Institute, Seoul, South Korea
| | - Jihun Jung
- Department of Microbiology, Seoul Metropolitan Environmental Health Institute, Seoul, South Korea
| | - Jae-In Lee
- Department of Microbiology, Seoul Metropolitan Environmental Health Institute, Seoul, South Korea
| | - Young-Ok Hwang
- Department of Microbiology, Seoul Metropolitan Environmental Health Institute, Seoul, South Korea
| | - Il-Young Kim
- Department of Microbiology, Seoul Metropolitan Environmental Health Institute, Seoul, South Korea
| | - Jip-Ho Lee
- Department of Microbiology, Seoul Metropolitan Environmental Health Institute, Seoul, South Korea
| | - Kweon Jung
- Department of Microbiology, Seoul Metropolitan Environmental Health Institute, Seoul, South Korea
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14
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Behzad H, Mineta K, Gojobori T. Global Ramifications of Dust and Sandstorm Microbiota. Genome Biol Evol 2018; 10:1970-1987. [PMID: 29961874 PMCID: PMC6097598 DOI: 10.1093/gbe/evy134] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/28/2018] [Indexed: 12/17/2022] Open
Abstract
Dust and sandstorm events inject substantial quantities of foreign microorganisms into global ecosystems, with the ability to impact distant environments. The majority of these microorganisms originate from deserts and drylands where the soil is laden with highly stress-resistant microbes capable of thriving under extreme environmental conditions, and a substantial portion of them survive long journeys through the atmosphere. This large-scale transmission of highly resilient alien microbial contaminants raises concerns with regards to the invasion of sensitive and/or pristine sink environments, and to human health-concerns exacerbated by increases in the rate of desertification. Further increases in the transport of dust-associated microbiota could extend the spread of foreign microbes to new ecosystems, increase their load in present sink environments, disrupt ecosystem balance, and potentially introduce new pathogens. Our present understanding of these microorganisms, their phylogenic affiliations and functional significance, is insufficient to determine their impact. The purpose of this review is to provide an overview of available data regarding dust and sandstorm microbiota and their potential ramifications on human and ecosystem health. We conclude by discussing current gaps in dust and sandstorm microbiota research, and the need for collaborative studies involving high-resolution meta-omic approaches in conjunction with extensive ecological time-series studies to advance the field towards an improved and sufficient understanding of these invisible atmospheric travelers and their global ramifications.
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Affiliation(s)
- Hayedeh Behzad
- King Abdullah University of Science and Technology (KAUST), Computational Bioscience Research Center (CBRC), Thuwal, Saudi Arabia
- King Abdullah University of Science and Technology (KAUST), Biological and Environmental Sciences and Engineering Division (BESE), Thuwal, Saudi Arabia
| | - Katsuhiko Mineta
- King Abdullah University of Science and Technology (KAUST), Computational Bioscience Research Center (CBRC), Thuwal, Saudi Arabia
- King Abdullah University of Science and Technology (KAUST), Computer, Electrical and Mathematical Sciences and Engineering Division (CEMSE), Thuwal, Saudi Arabia
| | - Takashi Gojobori
- King Abdullah University of Science and Technology (KAUST), Computational Bioscience Research Center (CBRC), Thuwal, Saudi Arabia
- King Abdullah University of Science and Technology (KAUST), Biological and Environmental Sciences and Engineering Division (BESE), Thuwal, Saudi Arabia
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15
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Westmeier D, Hahlbrock A, Reinhardt C, Fröhlich-Nowoisky J, Wessler S, Vallet C, Pöschl U, Knauer SK, Stauber RH. Nanomaterial–microbe cross-talk: physicochemical principles and (patho)biological consequences. Chem Soc Rev 2018; 47:5312-5337. [DOI: 10.1039/c6cs00691d] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
NPs’ characteristics impact their spontaneous binding to microbes, which may affect the (patho)biological identity of both NP and microbes.
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Affiliation(s)
- D. Westmeier
- Department of Nanobiomedicine/ENT
- University Medical Center of Mainz
- 55101 Mainz
- Germany
| | - A. Hahlbrock
- Department of Nanobiomedicine/ENT
- University Medical Center of Mainz
- 55101 Mainz
- Germany
| | - C. Reinhardt
- Center for Thrombosis and Hemostasis
- University Medical Center Mainz
- 55101 Mainz
- Germany
| | - J. Fröhlich-Nowoisky
- Multiphase Chemistry Department
- Max Planck Institute for Chemistry
- 55128 Mainz
- Germany
| | - S. Wessler
- Department of Molecular Biology
- Paris-Lodron University of Salzburg
- A-5020 Salzburg
- Austria
| | - C. Vallet
- Institute for Molecular Biology
- CENIDE
- University Duisburg-Essen
- 45117 Essen
- Germany
| | - U. Pöschl
- Multiphase Chemistry Department
- Max Planck Institute for Chemistry
- 55128 Mainz
- Germany
| | - S. K. Knauer
- Institute for Molecular Biology
- CENIDE
- University Duisburg-Essen
- 45117 Essen
- Germany
| | - R. H. Stauber
- Department of Nanobiomedicine/ENT
- University Medical Center of Mainz
- 55101 Mainz
- Germany
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