野川湧水中の硝酸塩濃度とその起源  [in Japanese] Nitrate concentration in spring water at the Nogawa basin and its possible source  [in Japanese]

Access this Article

Search this Article

Author(s)

    • 吉田 和広 YOSHIDA Kazuhiro
    • 東京農工大学農学部環境保護学科 Department of Environmental Science and Conservation, Faculty of Agriculture, Tokyo University of Agriculture and Technology
    • 小倉 紀雄 OGURA Norio
    • 東京農工大学農学部環境保護学科 Department of Environmental Science and Conservation, Faculty of Agriculture, Tokyo University of Agriculture and Technology

Abstract

Fluctuation of nitrate concentration in spring water at the Nogawa basin was studied during 1976-1977, and the possible source of nitrate nitrogen was discussed. Nitrate concentration in spring water at the station N-0 in Kokubunji, Tokyo ranged from 360 to 574 μg at/1 with an average value of 502 μg at/1. It seemed that the effluent of spring water at N-0 was influenced by rainfall within a short period. A laboratory experiment on production of nitrate in soil showed that ammonium nitrogen added to fresh soil was transformed quantitatively to nitrate nitrogen during 23 days incu- bation. Thd δ<sup>15</sup>N value of nitrate nitrogen in spring water (+8.9‰) was similar to that of ammonium nitrogen in sewage (+8.2‰) discharging into the Nogawa River. In the area near N-0, domestic wastes have been discharged into the Nogawa River by simple sewers or percolated downward through the soil. These results suggest that one of the main source of nitrate nitrogen in spring water is ammonium and organic nitrogen in domestic wastes.

Journal

  • Chikyukagaku

    Chikyukagaku 12(2), 44-51, 1978

    The Geochemical Society of Japan

Cited by:  4

Codes

  • NII Article ID (NAID)
    110008679648
  • NII NACSIS-CAT ID (NCID)
    AN00141280
  • Text Lang
    JPN
  • Article Type
    Journal Article
  • ISSN
    0386-4073
  • NDL Article ID
    2032176
  • NDL Source Classification
    ME34;M092
  • NDL Source Classification
    ZM41(科学技術--地球科学)
  • NDL Call No.
    Z15-645
  • Data Source
    CJPref  NDL  NII-ELS  J-STAGE 
Page Top