Minor effect of physical size sorting on iron solubility of transported mineral dust

Z. B. Shi; M. T. Woodhouse; K. S. Carslaw; M. D. Krom; G. W. Mann; A. R. Baker; I. Savov; G. R. Fones; B. Brooks; N. Drake; T. D. Jickells; L. G. Benning

doi:10.5194/acp-11-8459-2011

Minor effect of physical size sorting on iron solubility of transported mineral dust

Z. B. Shi, M. T. Woodhouse, K. S. Carslaw, M. D. Krom, G. W. Mann, A. R. Baker, I. Savov, G. R. Fones, B. Brooks, N. Drake, T. D. Jickells, L. G. Benning

Research output: Contribution to journal › Article › peer-review

Abstract

Observations show that the fractional solubility of Fe (FS-Fe, percentage of dissolved to total Fe) in dust aerosol increases considerably from 0.1 % in regions of high dust mass concentration to 80 % in remote regions where concentrations are low. Here, we combined laboratory geochemical measurements with global aerosol model simulations to test the hypothesis that the increase in FS-Fe is due to physical size sorting during transport. We determined the FS-Fe and fractional solubility of Al (FS-Al) in size-fractionated dust generated from two representative soil samples collected from known Saharan dust source regions using a customized dust re-suspension and collection system. The results show that the FS-Fe is size-dependent and ranges from 0.1-0.3 % in the coarse size fractions (>1 µm) to ~0.2-0.8 % in the fine size fractions (

Original language	English
Pages (from-to)	8459-8469
Number of pages	11
Journal	Atmospheric Chemistry and Physics
Volume	11
Issue number	16
DOIs	https://doi.org/10.5194/acp-11-8459-2011
Publication status	Published - 19 Aug 2011

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http://dx.doi.org/10.5194/acp-11-8459-2011Licence: CC BY

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Minor effect of physical size sorting on iron solubility of transported mineral dust
Shi, Z. B., Woodhouse, M. T., Carslaw, K. S., Krom, M. D., Mann, G. W., Baker, A. R., Savov, I., Fones, G., Brooks, B., Jickells, T. D. & Benning, L. G., 2011, 5 ed., Copernicus Publications, p. 14309-14338, 30 p. (Atmospheric Chemistry and Physics Discussions).
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@article{c12c717305764b5788a53273081339f8,

title = "Minor effect of physical size sorting on iron solubility of transported mineral dust",

abstract = "Observations show that the fractional solubility of Fe (FS-Fe, percentage of dissolved to total Fe) in dust aerosol increases considerably from 0.1 % in regions of high dust mass concentration to 80 % in remote regions where concentrations are low. Here, we combined laboratory geochemical measurements with global aerosol model simulations to test the hypothesis that the increase in FS-Fe is due to physical size sorting during transport. We determined the FS-Fe and fractional solubility of Al (FS-Al) in size-fractionated dust generated from two representative soil samples collected from known Saharan dust source regions using a customized dust re-suspension and collection system. The results show that the FS-Fe is size-dependent and ranges from 0.1-0.3 % in the coarse size fractions (>1 µm) to ~0.2-0.8 % in the fine size fractions (",

author = "Shi, {Z. B.} and Woodhouse, {M. T.} and Carslaw, {K. S.} and Krom, {M. D.} and Mann, {G. W.} and Baker, {A. R.} and I. Savov and Fones, {G. R.} and B. Brooks and N. Drake and Jickells, {T. D.} and Benning, {L. G.}",

year = "2011",

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doi = "10.5194/acp-11-8459-2011",

language = "English",

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T1 - Minor effect of physical size sorting on iron solubility of transported mineral dust

AU - Shi, Z. B.

AU - Woodhouse, M. T.

AU - Carslaw, K. S.

AU - Krom, M. D.

AU - Mann, G. W.

AU - Baker, A. R.

AU - Savov, I.

AU - Fones, G. R.

AU - Brooks, B.

AU - Drake, N.

AU - Jickells, T. D.

AU - Benning, L. G.

PY - 2011/8/19

Y1 - 2011/8/19

N2 - Observations show that the fractional solubility of Fe (FS-Fe, percentage of dissolved to total Fe) in dust aerosol increases considerably from 0.1 % in regions of high dust mass concentration to 80 % in remote regions where concentrations are low. Here, we combined laboratory geochemical measurements with global aerosol model simulations to test the hypothesis that the increase in FS-Fe is due to physical size sorting during transport. We determined the FS-Fe and fractional solubility of Al (FS-Al) in size-fractionated dust generated from two representative soil samples collected from known Saharan dust source regions using a customized dust re-suspension and collection system. The results show that the FS-Fe is size-dependent and ranges from 0.1-0.3 % in the coarse size fractions (>1 µm) to ~0.2-0.8 % in the fine size fractions (

AB - Observations show that the fractional solubility of Fe (FS-Fe, percentage of dissolved to total Fe) in dust aerosol increases considerably from 0.1 % in regions of high dust mass concentration to 80 % in remote regions where concentrations are low. Here, we combined laboratory geochemical measurements with global aerosol model simulations to test the hypothesis that the increase in FS-Fe is due to physical size sorting during transport. We determined the FS-Fe and fractional solubility of Al (FS-Al) in size-fractionated dust generated from two representative soil samples collected from known Saharan dust source regions using a customized dust re-suspension and collection system. The results show that the FS-Fe is size-dependent and ranges from 0.1-0.3 % in the coarse size fractions (>1 µm) to ~0.2-0.8 % in the fine size fractions (

U2 - 10.5194/acp-11-8459-2011

DO - 10.5194/acp-11-8459-2011

M3 - Article

SN - 1680-7324

VL - 11

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EP - 8469

JO - Atmospheric Chemistry and Physics

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