四国・高知県梶が森山頂の冬期降雨, 降雪, 樹氷及び雨氷中の鉛とカドミウム濃度  [in Japanese] Lead and Cadmium Concentrations in Winter Rain, Fresh Snow, Rime and Glaze Collected on the Top of Mt. Kajigamori, Kochi Prefecture in Shikoku Island, Japan  [in Japanese]

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Author(s)

    • 今井 昭二 IMAI Shoji
    • 徳島大学大学院ソシオ・アーツ・アンド・サイエンス研究部 Division of Chemistry, Institute of Socio-Arts and Sciences, The University of Tokushima
    • 黒谷 功 KUROTANI Isao
    • 徳島大学大学院総合科学教育部 Department of Chemistry, Graduate School of Integrated Arts and Sciences, The University of Tokushima
    • 伊東 聡史 [他] ITO Satoshi
    • 徳島大学大学院総合科学教育部 Department of Chemistry, Graduate School of Integrated Arts and Sciences, The University of Tokushima
    • 山本 孝 YAMAMOTO Takashi
    • 徳島大学大学院ソシオ・アーツ・アンド・サイエンス研究部 Division of Chemistry, Institute of Socio-Arts and Sciences, The University of Tokushima
    • 山本 裕史 YAMAMOTO Hiroshi
    • 徳島大学大学院ソシオ・アーツ・アンド・サイエンス研究部 Division of Chemistry, Institute of Socio-Arts and Sciences, The University of Tokushima

Abstract

Winter rain, fresh snow, rime and glaze samples were collected on the top of Mt. Kajigamori (ALT. 1400 m), which is the watershed protection forest of Riv. Yoshinogawa with an altitude of 1400 m, Kochi, Shikoku Island in West Japan during the winter season of 2010 (December 2009 and March 2010). Lead and cadmium in the rain, snow, rime and glaze were analyzed by graphite furnace atomic absorption spectrometry together with the ionic components (Na+, NH4+, K+, Mg2+, Ca2+, F−, Cl−, NO2−, Br−, NO3−, PO43−, SO42−) by ion chromatography, and pH, E.C. during the winter season. In the back-trajectory over Russia-Japan Sea, very low concentrations of Pb and Cd were observed in all samples. From the back-trajectory over North China and Korea, it was considered that the observed relatively high concentration of Pb in snow and rime and Cd in rain showed a possibility of long-range transportation from the East Asis region. The low concentration of lead in rime ice and fresh snow collected at Mt. Tateeboshiyama (ALT. 1299 m) in Shobara city, Hiroshima (Mt. Hibasan quasi-national park) was observed with back-trajectry over Russia-Japan Sea.

Winter rain, fresh snow, rime and glaze samples were collected on the top of <i>Mt. Kajigamori</i> (ALT. 1400 m), which is the watershed protection forest of Riv. Yoshinogawa with an altitude of 1400 m, Kochi, Shikoku Island in West Japan during the winter season of 2010 (December 2009 and March 2010). Lead and cadmium in the rain, snow, rime and glaze were analyzed by graphite furnace atomic absorption spectrometry together with the ionic components (Na<sup>+</sup>, NH<sub>4</sub><sup>+</sup>, K<sup>+</sup>, Mg<sup>2+</sup>, Ca<sup>2+</sup>, F<sup>−</sup>, Cl<sup>−</sup>, NO<sub>2</sub><sup>−</sup>, Br<sup>−</sup>, NO<sub>3</sub><sup>−</sup>, PO<sub>4</sub><sup>3−</sup>, SO<sub>4</sub><sup>2−</sup>) by ion chromatography, and pH, E.C. during the winter season. In the back-trajectory over Russia-Japan Sea, very low concentrations of Pb and Cd were observed in all samples. From the back-trajectory over North China and Korea, it was considered that the observed relatively high concentration of Pb in snow and rime and Cd in rain showed a possibility of long-range transportation from the East Asis region. The low concentration of lead in rime ice and fresh snow collected at Mt. Tateeboshiyama (ALT. 1299 m) in Shobara city, Hiroshima (<i>Mt. Hibasan quasi-national park</i>) was observed with back-trajectry over Russia-Japan Sea.

Journal

  • BUNSEKI KAGAKU

    BUNSEKI KAGAKU 60(2), 179-190, 2011-02-05

    The Japan Society for Analytical Chemistry

References:  26

Codes

  • NII Article ID (NAID)
    10027410226
  • NII NACSIS-CAT ID (NCID)
    AN00222633
  • Text Lang
    JPN
  • Article Type
    NOT
  • ISSN
    05251931
  • NDL Article ID
    11009267
  • NDL Source Classification
    ZP4(科学技術--化学・化学工業--分析化学)
  • NDL Call No.
    Z17-9
  • Data Source
    CJP  NDL  IR  J-STAGE 
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