DOI: 10.1016/j.atmosenv.2017.08.013
Scopus记录号: 2-s2.0-85029171334
论文题名: Bacterial abundance and viability in rainwater associated with cyclones, stationary fronts and typhoons in southwestern Japan
作者: Hu W ; , Murata K ; , Toyonaga S ; , Zhang D
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2017
卷: 167 起始页码: 104
结束页码: 115
语种: 英语
英文关键词: Cloud formation
; Fluorescent enumeration
; Rainwater bacteria
; Viability
; Weather
Scopus关键词: Bacteria
; Cytology
; Hurricanes
; Principal component analysis
; Storms
; Weathering
; Airborne particle concentration
; Bacterial abundance
; Bacterial viability
; Cell concentrations
; Cloud formation
; Fluorescent enumeration
; Southwestern Japan
; Viability
; Cells
; calcium
; chlorine
; magnesium
; potassium
; rain
; sodium
; sulfate
; abundance
; bacterium
; cells and cell components
; cyclone
; principal component analysis
; rainwater
; standing wave
; suburban area
; synoptic meteorology
; typhoon
; weather forecasting
; airborne particle
; Article
; bacterial abundance
; bacterial cell
; bacterial phenomena and functions
; bacterial viability
; controlled study
; hurricane
; Japan
; nonhuman
; priority journal
; Japan
; Bacteria (microorganisms)
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: The abundance and viability of bacterial cells in rainwater at a suburban site in southwestern Japan between October 2014 and September 2015 were measured and their distinctiveness, according to synoptic weather systems, i.e., cyclones (cold fronts), stationary fronts (including Meiyu and non-Meiyu fronts) and typhoons, was examined. On average, the cell concentration of bacteria in the rainwater was 2.3 ± 1.5 × 104 cells mL−1, and bacterial viability, the ratio of viable cells to total cells, was 80 ± 10%. In the rainwater of cyclones when clouds were induced by the intrusion of continental air, the bacterial concentration was higher (3.5 ± 1.6 × 104 cells mL−1) and the viability was lower (75 ± 8%) than in the rainwater of other types. In the rainwater of Meiyu fronts and typhoons when clouds were significantly influenced by marine air, bacterial concentrations were 1.5 ± 0.5 × 104 and 1.2 ± 0.3 × 104 cells mL−1, and bacterial viabilities were 84 ± 7% and 85 ± 7%, respectively. In the rainwater of non-Meiyu stationary fronts, the bacterial concentration was 2.4 ± 1.6 × 104 cells mL−1, and the viability was 78 ± 14%. Abundant bacteria were associated with ions nss-SO4 2−, nss-Ca2+, and NO3 − in rainwater, but bacterial concentrations did not correlate with the ratios of airborne particle concentrations to the precipitation amounts. Further investigations with correlation and principal component analysis combining bacteria and ion species revealed that bacteria in the rainwater were likely enclosed in clouds at the stage of cloud formation in addition to below-cloud removal, and bacteria involved in the rainwater did not show confirmable growth. © 2017 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/82633
Appears in Collections: 气候变化事实与影响
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作者单位: Faculty of Environmental and Symbiotic Sciences, Prefectural University of Kumamoto, Kumamoto, Japan; National Institute of Polar Research, Tokyo, Japan
Recommended Citation:
Hu W,, Murata K,, Toyonaga S,et al. Bacterial abundance and viability in rainwater associated with cyclones, stationary fronts and typhoons in southwestern Japan[J]. Atmospheric Environment,2017-01-01,167