Arsenic in groundwater and deteriorating groundwater quality: unfolding crisis in Lahore and Kasur district, Punjab, Pakistan

• FAROOQI ABIDA

  Graduate School of Science, Osaka City University

• MASUDA HARUE

  Graduate School of Science, Osaka City University

• KUSAKABE MINORU

  Institute for the Study of the Earth’s Interior, Okayama University

• SIDDIQU REHAN-UL- HAQ

  Geosciences Laboratory, Geological Survey of Pakistan, Islamabad

抄録

150 groundwaters, sampled from 16 different villages of Lahore and Kasur districts, Punjab Pakistan, contain As exceeding the WHO standard (10microg/L) and reaches up to 2483 microg/L. The highly arsenic concentrated samples were obtained mostly from shallow hand pumps of 20-27m depth, and those are characterized by basic pH up to 9.5 and high SO4 up to 1200 mg/L. The sulfur isotopes values range from 4.8 to 6.7 with mean of 5.6. Arsenic speciation showed the As is in As+5 state. The spatial distribution of As-rich shallow groundwaters indicates either direct contamination from some anthropogenic source like coal combustion, or use of fertilizers. This paper reports the chemical characteristics of this newly reported contaminated groundwater and possible sources and mobilization of As.

収録刊行物

• 日本地球化学会年会要旨集

  日本地球化学会年会要旨集 52 (0), 297-297, 2005

  一般社団法人日本地球化学会

キーワード

• Arsenic
• Groundwater
• Anthropogenic sources
• Sulfur isotopes
• Pakistan

詳細情報

• CRID: 1390282680708139264
• NII論文ID: 130004592615
• DOI: 10.14862/geochemproc.52.0.297.0
• データソース種別:
  • JaLC
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可