IDEAS home Printed from https://ideas.repec.org/a/aoj/areaes/v6y2019i1p70-77id1191.html
   My bibliography  Save this article

Groundwater Quality Determination for Drinking Purpose by Using Water Quality Index Technique: A Case Study of Gadap Town, Karachi, Pakistan

Author

Listed:
  • Asal Eghbal Bakhtiari
  • Adnan Khan
  • Zubaid Saeed
  • Ayesha Kanwal

Abstract

Present study is aimed at assessment of groundwater quality of Gadap Town for drinking purpose using water quality index (WQI) technique. Gadap is located in the outskirt of Karachi city and mainly influenced by the agriculture activities. Groundwater samples (n = 22) were collected mainly from boring wells and a few through tube wells from variable depths (100-600 feet). The analytical results of water reveal occurrence of very high TDS (range: 466-3810; mean: 1402) and hardness contents (range: 250-2800 mg/L). On the other hand, pH varies (range: 6.9-8.1; mean: 7.5) within WHO guidelines (6.5-8.5) with a few samples showing turbidity. About one third of total collected samples (n = 8) were analyzed for qualitative determination of microbial contamination which are found positive, except one sample, indicating the sewage mixing. Major chemistry of groundwater is also found disturbed in terms of high content of Na (mean: 219 mg/L), K (mean: 15 mg/L), Ca (mean: 144 mg/L) and Mg (mean: mg/L 137). Similarly, anions varied in the order of Cl > HCO3 > SO4 > NO3. Although some parameters show the bad quality of water but Water quality index (WQI) value (16.18) indicates that the groundwater quality is suitable for drinking purpose. It is inferred from the present study that water quality is partly polluted due to anthropogenic activities mainly by sewage infiltration.

Suggested Citation

  • Asal Eghbal Bakhtiari & Adnan Khan & Zubaid Saeed & Ayesha Kanwal, 2019. "Groundwater Quality Determination for Drinking Purpose by Using Water Quality Index Technique: A Case Study of Gadap Town, Karachi, Pakistan," Asian Review of Environmental and Earth Sciences, Asian Online Journal Publishing Group, vol. 6(1), pages 70-77.
    • Handle: RePEc:aoj:areaes:v:6:y:2019:i:1:p:70-77:id:1191
    as

    Download full text from publisher

    File URL: http://asianonlinejournals.com/index.php/AREES/article/view/1191/1211
    Download Restriction: no
    ---><---

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:aoj:areaes:v:6:y:2019:i:1:p:70-77:id:1191. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Sara Lim (email available below). General contact details of provider: http://asianonlinejournals.com/index.php/AREES/ .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.