DOI: 10.1016/j.atmosenv.2015.10.020
Scopus记录号: 2-s2.0-84945123306
论文题名: Model simulations of fungal spore distribution over the Indian region
作者: Ansari T ; U ; , Valsan A ; E ; , Ojha N ; , Ravikrishna R ; , Narasimhan B ; , Gunthe S ; S
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2015
卷: 122 起始页码: 552
结束页码: 560
语种: 英语
英文关键词: Bioaerosols
; Fungal spores
; South Asia / India
; WRF-Chem
Scopus关键词: Aerosols
; Atmospheric thermodynamics
; Boundary layers
; Land use
; Mixing
; Bioaerosols
; Boundary layer mixing
; Elevated concentrations
; Fungal spores
; Meteorological condition
; Seasonal dependence
; South Asia
; WRF-Chem
; Fungi
; aerosol
; atmospheric convection
; boundary layer
; concentration (composition)
; fungus
; hydrological change
; land use change
; mixing
; numerical model
; seasonal variation
; spatial distribution
; spatial variation
; spore
; troposphere
; agricultural land
; air quality
; altitude
; Article
; boundary layer
; cloud
; concentration (parameters)
; fungus spore
; global climate
; Indian
; land use
; longitude
; particulate matter
; priority journal
; seasonal variation
; summer
; thermodynamics
; troposphere
; wet deposition
; winter
; India
; Animalia
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: Fungal spores play important role in the health of humans, animals, and plants by constituting a class of the primary biological aerosol particles (PBAPs). Additionally, these could mediate the hydrological cycle by acting as nuclei for ice and cloud formation (IN and CCN respectively). Various processes in the biosphere and the variations in the meteorological conditions control the releasing mechanism of spores through active wet and dry discharge. In the present paper, we simulate the concentration of fungal spores over the Indian region during three distinct meteorological seasons by combining a numerical model (WRF-Chem) with the fungal spore emissions based on land-use type. Maiden high-resolution regional simulations revealed large spatial gradient and strong seasonal dependence in the concentration of fungal spores over the Indian region. The fungal spore concentrations are found to be the highest during winter (0-70 μg m-3 in December), moderately higher during summer (0-35 μg m-3 in May) and lowest during the monsoon (0-25 μg m-3 in July). The elevated concentrations during winter are attributed to the shallower boundary layer trapping the emitted fungal spores in smaller volume. In contrast, the deeper boundary layer mixing in May and stronger monsoonal-convection in July distribute the fungal spores throughout the lower troposphere (~5 km). We suggest that the higher fungal spore concentrations during winter could have potential health impacts. While, stronger vertical mixing could enable fungal spores to influence the cloud formation during summer and monsoon. Our study provides the first information about the distribution and seasonal variation of fungal spores over the densely populated and observationally sparse Indian region. © 2015 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81373
Appears in Collections: 气候变化事实与影响
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作者单位: EWRE Division, Department of Civil Engineering, Indian Institute of Technology Madras, Chennai, India; Atmospheric Chemistry Department, Max Planck Institute for Chemistry, Mainz, Germany; Department of Chemical Engineering, Indian Institute of Technology Madras, Chennai, India
Recommended Citation:
Ansari T,U,, Valsan A,et al. Model simulations of fungal spore distribution over the Indian region[J]. Atmospheric Environment,2015-01-01,122