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Details for article 18 of 30 found articles
| Title: |
Importance of the surface reaction OH + Cl<sup>−</sup> on sea salt aerosol for the chemistry of the marine boundary layer – a model study |
| Author: |
R. von Glasow |
| Appeared in: |
Atmospheric chemistry and physics |
| Paging: | Volume 6 (2006) nr. 11 pages 3571-3581 |
| Year: |
2006 |
| Contents: |
The reaction of the hydroxyl radical with chloride on the surface of sea salt aerosol producing gas phase Cl<sub>2</sub> and particulate OH<sup>−</sup> and its implications for the chemistry of the marine boundary layer under coastal, remote, and very remote conditions have been investigated with a numerical model. This reaction had been suggested by Laskin et al. (2003) to play a major role in the sulfur cycle in the marine boundary layer by increasing the sulfate production in sea salt by O<sub>3</sub> oxidation due to the additional production of alkalinity in the particle. Based on literature data a new "best estimate" for the rate coefficient of the reaction was deduced and applied, showing that the additional initial sulfate production by this reaction is less than 1%, therefore having only a minor impact on sulfate production. Even though the gas phase concentration of Cl<sub>2</sub> increased strongly in the model, the concentration of Cl radicals increased by less than 5% for the "best guess" case. Additional feedbacks between the cycles of chlorine and sulfur in the marine boundary layer are discussed as well as a two-stage acidification of large fresh sea salt aerosol. |
| Publisher: |
Copernicus GmbH (provided by DOAJ) |
| Source file: |
Elektronische Wetenschappelijke Tijdschriften |
Details for article 18 of 30 found articles
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