Humic-like substances global levels and extraction methods in aerosols

Naoya Katsumi, Shuhei Miyake, Hiroshi Okochi, Yukiya Minami, Hiroshi Kobayashi, Shungo Kato, Ryuichi Wada, Masaki Takeuchi, Kei Toda, Kazuhiko Miura

    Research output: Contribution to journalArticle

    Abstract

    The abundance of humic-like substances in the atmosphere has received considerable attention since these substances play an important role in various atmospheric processes. The wide variety of quantitative techniques used to study humic-like substances produce dissimilar results, making data comparison difficult. Also, global background concentrations and the transfer of atmospheric humic-like substances are poorly known. Here, we compared resins to extract humic-like substances in aerosols, and we measured contents in aerosols from Mt. Fuji. Results show that diethylaminoethyl cellulose resins extracted more humic-like substances than the diethylaminoethyl resin (hydroxylated methacrylic polymer). The mean humic-like substances concentrations in the free troposphere in East Asia is similar to that in Europe, suggesting that the global background level of humic-like substances is 0.05 μg C m−3, based on the humic-like substances concentrations on Mt. Fuji and Mt. Sonnblick. Humic-like substances concentrations, especially fulvic acids concentration, at the summit of Mt. Fuji increased when air masses came from the continent along with the carbon monoxide and ozone.

    Original languageEnglish
    JournalEnvironmental Chemistry Letters
    DOIs
    Publication statusAccepted/In press - 2018 Jan 1

    Fingerprint

    extraction method
    Aerosols
    resin
    Resins
    aerosol
    Troposphere
    Ozone
    Carbon Monoxide
    fulvic acid
    background level
    carbon monoxide
    Cellulose
    air mass
    cellulose
    troposphere
    Polymers
    polymer
    ozone
    atmosphere
    Air

    Keywords

    • Diethylaminoethyl resin
    • Free troposphere
    • Humic-like substances
    • Water-soluble organic carbon

    ASJC Scopus subject areas

    • Environmental Chemistry

    Cite this

    Humic-like substances global levels and extraction methods in aerosols. / Katsumi, Naoya; Miyake, Shuhei; Okochi, Hiroshi; Minami, Yukiya; Kobayashi, Hiroshi; Kato, Shungo; Wada, Ryuichi; Takeuchi, Masaki; Toda, Kei; Miura, Kazuhiko.

    In: Environmental Chemistry Letters, 01.01.2018.

    Research output: Contribution to journalArticle

    Katsumi, N, Miyake, S, Okochi, H, Minami, Y, Kobayashi, H, Kato, S, Wada, R, Takeuchi, M, Toda, K & Miura, K 2018, 'Humic-like substances global levels and extraction methods in aerosols', Environmental Chemistry Letters. https://doi.org/10.1007/s10311-018-00820-6
    Katsumi, Naoya ; Miyake, Shuhei ; Okochi, Hiroshi ; Minami, Yukiya ; Kobayashi, Hiroshi ; Kato, Shungo ; Wada, Ryuichi ; Takeuchi, Masaki ; Toda, Kei ; Miura, Kazuhiko. / Humic-like substances global levels and extraction methods in aerosols. In: Environmental Chemistry Letters. 2018.
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    AU - Kato, Shungo

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