Assessment of water quality and macroinvertebrates at sites upstream and downstream of the inflow of treated mine drainage: A case study of Yoshino legacy mine

DOI
  • Iwasaki Yuichi
    Research Institute of Science for Safety and Sustainability, National Institute of Advanced Industrial Science and Technology
  • Sudo Teppei
    Ecoris Inc
  • Shinohara Naohide
    Research Institute of Science for Safety and Sustainability, National Institute of Advanced Industrial Science and Technology

Bibliographic Information

Other Title
  • 鉱山廃水処理水が流入する直上・直下地点での水質及び底生動物調査：吉乃鉱山での事例

Abstract

<p>We aimed to investigate the changes in water quality and benthic macroinvertebrates at two sites (N1 and N2) downstream and upstream of the inflow of treated mine discharge from a legacy mine (Yoshino mine located in Akita prefecture) in the Naruse river. Based on field surveys conducted in spring (May) and fall (October) 2022, detectable increases in dissolved concentrations of trace metals (Cu, Zn, Cd, and Pb) were observed at the downstream site (N2) but those concentrations were well below the U. S. water quality criteria. In addition, reductions of richness (number of taxa) and abundances (number of individuals) of metal-sensitive mayflies were not detected at the downstream site, and most of the richness and abundance metrics for macroinvertebrates showed no significant difference between the two sites.</p>

Journal

Keywords

Details 詳細情報について

  • CRID
    1390862112961766400
  • DOI
    10.11403/jset.27.1
  • ISSN
    18825958
    13440667
  • Text Lang
    ja
  • Data Source
    • JaLC
  • Abstract License Flag
    Disallowed

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