globalchange  > 气候变化与战略
DOI: 10.1016/j.atmosenv.2019.117160
论文题名:
Enrichment of organic nitrogen in primary biological particles during advection over the North Atlantic
作者: Dall'Osto M.; Santl-Temkiv T.; O'Dowd C.; Harrison R.M.
刊名: Atmospheric Environment
ISSN: 1352-2310
出版年: 2020
卷: 222
语种: 英语
英文关键词: Aerosols ; Dust ; Mass spectrometers ; Mass spectrometry ; Meteorological problems ; Nitrogen ; Oceanography ; Potassium compounds ; Aerosol aging ; ATOFMF ; Biological particles ; Organic nitrogen ; Single particle ; Atmospheric movements ; aliphatic amine ; aluminum ; biological product ; black carbon ; calcium ; iron ; lithium ; magnesium ; mesylic acid ; organic nitrogen ; phosphate ; potassium ; titanium ; advection ; aerosol ; atmospheric deposition ; atmospheric transport ; dust ; instrumentation ; organic nitrogen ; advection ; aerosol ; Atlantic Ocean ; atmosphere ; atmospheric deposition ; atmospheric transport ; chemical composition ; combustion ; dust ; Ireland ; priority journal ; time of flight mass spectrometry ; Atlantic Ocean ; Atlantic Ocean (North) ; Cape Verde [Macaronesia] ; Connacht ; Connacht ; Galway [(CNT) Connacht] ; Ireland ; Mace Head
学科: Aerosol aging ; ATOFMF ; Biological particles ; Organic nitrogen ; Single particle
中文摘要: Using a number of datasets from single particle Aerosol Time-Of-Flight Mass Spectrometry (ATOFMS) measurements, we show only a minor presence of Organic Nitrogen (ON) species in Saharan dust particles (aerosol size range 0.2–3 μm) collected at their origin. ON enhancement is not observed on Saharan dust particles after atmospheric transport (48–96 h) either over the Tropical Ocean in the vicinity of Cape Verde, over the North Atlantic Ocean. In the negative ATOFMS mass spectra, signals due to ON species were found weaks in biological particles (rich in potassium and phosphate) in their source area, and signals due to alkylamines in the positive ATOFMS mass spectra were not found. In striking contrast, biological particles travelling within aerosol dust plumes are found to be enriched in ON species - including alkylamines - in North Atlantic Ocean air (Mace Head, Ireland), as seen in both positive and negative ATOFMS mass spectra. Contrary to filter based aerosol techniques which report ON enrichment within Saharan dust, our single particle mass spectrometry data - allowing study of the aerosol mixing state - suggests that the aging biological particles and not the associated transported aging Saharan dust may be a source of ON species. We suggest biogeochemical processes occurring in the atmosphere in which biological particles are responsible for ON production. This may be an important source of nutrients to the ocean via atmospheric deposition. © 2019 Elsevier Ltd
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/161076
Appears in Collections:气候变化与战略

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作者单位: Institut de Ciències del Mar, CSIC Pg Marítim de la Barceloneta 37-49, Barcelona, 08003, Spain; Aarhus University, Department of Environmental Science, Roskilde, Denmark; Department of Experimental Physics and Environmental Change Institute, National University of Ireland Galway, Ireland; National Centre for Atmospheric Science Division of Environmental Health & Risk Management School of Geography, Earth & Environmental Sciences University of Birmingham, Edgbaston, Birmingham, B15 2TT, United Kingdom

Recommended Citation:
Dall'Osto M.,Santl-Temkiv T.,O'Dowd C.,et al. Enrichment of organic nitrogen in primary biological particles during advection over the North Atlantic[J]. Atmospheric Environment,2020-01-01,222
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