DOI: 10.1016/j.atmosenv.2017.06.005
Scopus记录号: 2-s2.0-85020411018
论文题名: Simulated nutrient dissolution of Asian aerosols in various atmospheric waters: Potential links to marine primary productivity
作者: Wang L ; , Bi Y ; , Zhang G ; , Liu S ; , Zhang J ; , Xu Z ; , Ren J ; , Zhang G
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2017
卷: 164 起始页码: 224
结束页码: 238
语种: 英语
英文关键词: Asian aerosol
; Atmospheric water
; Nutrient dissolution
; Solubility
; Yellow Sea
Scopus关键词: Aerosols
; Biochemistry
; Correlation methods
; Dissolution
; Nutrients
; Phosphorus
; Phytoplankton
; Rate constants
; Semiconducting silicon compounds
; Silicon
; Solubility
; Atmospheric water
; Bioavailable phosphorus
; First-order kinetic models
; Hydrochloric acid solution
; Pearson correlation analysis
; Total suspended particulates
; Transition state theories
; Yellow sea
; Atmospheric aerosols
; hydrochloric acid
; rain
; water
; aerosol
; air mass
; atmospheric moisture
; bioavailability
; dissolution
; marine ecosystem
; mineral
; nitrogen
; phosphorus
; primary production
; silicon
; solubility
; suspended particulate matter
; trajectory
; aerosol
; Article
; atmosphere
; cloud
; combustion
; diatom
; dissolution
; dissolution rate constant
; dust
; fog
; leaching
; limit of detection
; nutrient
; priority journal
; scanning electron microscopy
; season
; steady state
; surface property
; Asia
; China
; Pacific Ocean
; Qingdao
; Shandong
; Yellow Sea
; algae
; Bacillariophyta
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: To probe the bioavailability and environmental mobility of aerosol nutrient elements (N, P, Si) in atmospheric water (rainwater, cloud and fog droplets), ten total suspended particulate (TSP) samples were collected at Fulong Mountain, Qingdao from prevailing air mass trajectory sources during four seasons. Then, a high time-resolution leaching experiment with simulated non-acidic atmospheric water (non-AAW, Milli-Q water, pH 5.5) and subsequently acidic atmospheric water (AAW, hydrochloric acid solution, pH 2) was performed. We found that regardless of the season or source, a monotonous decreasing pattern was observed in the dissolution of N, P and Si compounds in aerosols reacted with non-AAW, and the accumulated dissolved curves of P and Si fit a first-order kinetic model. No additional NO3 − + NO2 − dissolved out, while a small amount of NH4 + in Asian dust (AD) samples was released in AAW. The similar dissolution behaviour of P and Si from non-AAW to AAW can be explained by the Transition State Theory. The sources of aerosols related to various minerals were the natural reasons that affected the amounts of bioavailable phosphorus and silicon in aerosols (i.e., solubility), which can be explained by the dissolution rate constant of P and Si in non-AAW with lower values in mineral aerosols. The acid/particle ratio and particle/liquid ratio also have a large effect on the solubility of P and Si, which was implied by Pearson correlation analysis. Acid processing of aerosols may have great significance for marine areas with limited P and Si and post-acidification release increases of 1.1–10-fold for phosphorus and 1.2–29-fold for silicon. The decreasing mole ratio of P and Si in AAW indicates the possibility of shifting from a Si-limit to a P-limit in aerosols in the ocean, which promotes the growth of diatoms prior to other algal species. © 2017 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/82679
Appears in Collections: 气候变化事实与影响
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作者单位: Key Laboratory of Marine Chemistry Theory and Technology MOE, Ocean University of China/Qingdao Collaborative Innovation Center of Marine Science and Technology, Qingdao, China; State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai, China; Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
Recommended Citation:
Wang L,, Bi Y,, Zhang G,et al. Simulated nutrient dissolution of Asian aerosols in various atmospheric waters: Potential links to marine primary productivity[J]. Atmospheric Environment,2017-01-01,164