Microplastics in rime-ice observed at a remote mountain

DOI Web Site Web Site 19 References
  • NAGAFUCHI Osamu
    Environmental Research Laboratory, Comprehensive Research Organizations of Fukuoka Institute of Technology Yakushima Institute of Environmental Sciences
  • NAKAZAWA Koyomi
    Yakushima Institute of Environmental Sciences Department of Environmental and Civil Engineering, Faculty of Engineering, Toyama Prefectural University
  • SHINOZUKA Ken’ichi
    Yakushima Institute of Environmental Sciences Department of Information and Systems Engineering, Faculty of Information Engineering, Fukuoka Institute of Technology

Bibliographic Information

Other Title
  • 都市域から離れた高山で検出されたマイクロプラスチック
  • トシイキ カラ ハナレタ コウザン デ ケンシュツ サレタ マイクロプラスチック

Search this article

Abstract

<p>Microplastics (MPs) have been found not only atmospheric deposition in urban areas, but also the snow obtained from Mt. Everest and Arctic, sediments in the deepest part of the Mariana Trench.</p><p>However, the pathway of the MPs to the atmosphere has not been clear. Here, we collected rime-ice and snowpack samples at Mt. Karakunidake in winter season to clarify the existence of atmospheric MPs deposition　in rime-ice and snowpack, using FTIR imaging. MPs were detected in the range of 8.34×106 m－3 to 12.3×106 m－3 in rime-ice, and 1.34×106 m－3 in snowpack. The concentration of MPs in rime-ice was about 10 times higher than that in snowpack. The particle size distribution of MPs in rime-ice showed more than 90.1 % of MPs were present below 100 µm fraction, and most of them were fragments. The predominant plastic found in the samples is polyethylene (as fragments). Mt. Karakunidake is isolated from the impact of human activities. This indicates that MPs can be transported from other area.</p>

Journal

References(19)*help

See more

Related Projects

See more

Keywords

Details 詳細情報について

Report a problem

Back to top