Measurement report: Stoichiometry of dissolved iron and aluminum as an indicator of the factors controlling the fractional solubility of aerosol iron – results of the annual observations of size-fractionated aerosol particles in Japan

Sakata, Kohei; Sakaguchi, Aya; Yamakawa, Yoshiaki; Miyamoto, Chihiro; Kurisu, Minako; Takahashi, Yoshio

doi:https://doi.org/10.5194/acp-23-9815-2023

Articles | Volume 23, issue 17

https://doi.org/10.5194/acp-23-9815-2023

© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-23-9815-2023

© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 23, issue 17

Measurement report

|

05 Sep 2023

Measurement report |

| 05 Sep 2023

Measurement report: Stoichiometry of dissolved iron and aluminum as an indicator of the factors controlling the fractional solubility of aerosol iron – results of the annual observations of size-fractionated aerosol particles in Japan

Kohei Sakata, Aya Sakaguchi, Yoshiaki Yamakawa, Chihiro Miyamoto, Minako Kurisu, and Yoshio Takahashi

Supplement

https://doi.org/10.5194/acp-23-9815-2023-supplement

Data sets

Concentration data of major ions, metals and dissolved metals in size-fractionated (seven-fractions) aerosol particels collected in Higashi-Hiroshima, JapanConcentration data of major ions, metals and dissolved metals in size-fractionated (seven-fractions) aerosol particels collected in Higashi-Hiroshima, Japan Kohei Sakata, Aya Sakaguchi, Yoshiaki Yamakawa, Chihiro Miyamoto, Minako Kurisu, and Yoshio Takahashi https://doi.org/10.34355/CRiED.U.Tsukuba.00156

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Short summary

Anthropogenic iron is the dominant source of dissolved Fe in aerosol particles, but its contribution to dissolved Fe in aerosol particles has not been quantitatively evaluated. We established the molar concentration ratio of dissolved Fe to dissolved Al as a new indicator to evaluate the contribution of anthropogenic iron. As a result, about 10 % of dissolved Fe in aerosol particles was derived from anthropogenic iron when aerosol particles were transported from East Asia to the Pacific Ocean.