DOI: 10.1016/j.atmosenv.2016.10.035
Scopus记录号: 2-s2.0-84995748216
论文题名: Solubility of aerosol trace elements: Sources and deposition fluxes in the Canary Region
作者: López-García P ; , Gelado-Caballero M ; D ; , Collado-Sánchez C ; , Hernández-Brito J ; J
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2017
卷: 148 起始页码: 167
结束页码: 174
语种: 英语
英文关键词: Aerosol
; Deposition fluxes
; Dust
; Nutrients
; Subtropical North Atlantic Ocean
; Trace metal solubility
Scopus关键词: Aerosols
; Biochemistry
; Carbon
; Deposition
; Dust
; Manganese
; Metals
; Meteorological problems
; Nutrients
; Oceanography
; Solubility
; Time series analysis
; Anthropogenic influence
; Atmospheric depositions
; Deposition fluxes
; Dissolved nutrients
; Marine biogeochemistries
; North Atlantic Ocean
; Oceanic carbon uptake
; Trace metal
; Trace elements
; aluminum
; calcium ion
; chlorophyll a
; cobalt
; copper
; iron
; manganese
; nitrate
; phosphate
; sulfate
; aerosol
; air-sea interaction
; atmospheric deposition
; bioavailability
; biogeochemistry
; dust
; flux measurement
; limiting factor
; mixed layer
; nutrient availability
; phytoplankton
; solubility
; trace metal
; water column
; aerosol
; Article
; atmospheric deposition
; atmospheric transport
; chemical analysis
; chemical composition
; chlorophyll content
; controlled study
; dust
; humidity
; nonhuman
; nutrient
; phytoplankton
; priority journal
; solubility
; Atlantic Ocean
; Atlantic Ocean (North)
; Canary Islands
; Spain
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: African dust inputs have important effects on the climate and marine biogeochemistry of the subtropical North Atlantic Ocean. The impact of dust inputs on oceanic carbon uptake and climate is dependent on total dust deposition fluxes as well as the bioavailability of nutrients and metals in the dust. In this work, the solubility of trace metals (Fe, Al, Mn, Co and Cu) and ions (Ca, sulphate, nitrate and phosphate) has been estimated from the analysis of a long-time series of 109 samples collected over a 3-year period in the Canary Islands. Solubility is primarily a function of aerosol origin, with higher solubility values corresponding to aerosols with more anthropogenic influence. Using soluble fractions of trace elements measured in this work, atmospheric deposition fluxes of soluble metals and nutrients have been calculated. Inputs of dissolved nutrients (P, N and Fe) have been estimated for the mixed layer. Considering that P is the limiting factor when ratios of these elements are compared with phytoplankton requirements, an increase of 0.58 nM of P in the mixed layer (∼150 m depth) and in a year can be estimated, which can support an increase of 0.02 μg Chla L−1 y−1. These atmospheric inputs of trace metals and nutrients appear to be significant relative to the concentrations reported in this region, especially during the summer months when the water column is more stratified and deep-water nutrient inputs are reduced. © 2016 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/82725
Appears in Collections: 气候变化事实与影响
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作者单位: Chemistry Department, University of Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain; Oceanic Platform of the Canary Islands (PLOCAN), Telde, Spain
Recommended Citation:
López-García P,, Gelado-Caballero M,D,et al. Solubility of aerosol trace elements: Sources and deposition fluxes in the Canary Region[J]. Atmospheric Environment,2017-01-01,148