Iron from coal combustion particles dissolves  much faster than mineral dust under simulated atmospheric acidic conditions

Baldo, Clarissa; Ito, Akinori; Krom, Michael D.; Li, Weijun; Jones, Tim; Drake, Nick; Ignatyev, Konstantin; Davidson, Nicholas; Shi, Zongbo

doi:https://doi.org/10.5194/acp-22-6045-2022

Articles | Volume 22, issue 9

https://doi.org/10.5194/acp-22-6045-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-22-6045-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 22, issue 9

Research article

|

09 May 2022

Research article |

| 09 May 2022

Iron from coal combustion particles dissolves much faster than mineral dust under simulated atmospheric acidic conditions

Clarissa Baldo, Akinori Ito, Michael D. Krom, Weijun Li, Tim Jones, Nick Drake, Konstantin Ignatyev, Nicholas Davidson, and Zongbo Shi

Supplement

https://doi.org/10.5194/acp-22-6045-2022-supplement

Data sets

Research data supporting "Iron from coal combustion particles dissolves much faster than mineral dust under simulated atmospheric acidic conditions" Clarissa Baldo https://doi.org/10.25500/edata.bham.00000702

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Short summary

High ionic strength relevant to the aerosol-water enhanced proton-promoted dissolution of iron in coal fly ash (up to 7 times) but suppressed oxalate-promoted dissolution at low pH (< 3). Fe in coal fly ash dissolved up to 7 times faster than in Saharan dust at low pH. A global model with the updated dissolution rates of iron in coal fly ash suggested a larger contribution of pyrogenic dissolved Fe over regions with a strong impact from fossil fuel combustions.