DOI: 10.5281/zenodo.10791173

Ground Water Quality Assessment of Landhi Industrial Area, Karachi, Pakistan

Adnan Khan*¹, Syed Wasi Haider²

¹Department of Geology, University of Karachi, Pakistan

²Institute of Space Science & Technology, University of Karachi, Karachi, Pakistan

* Corresponding author E-mail: adkhan@uok.edu.pk

Abstract: Landhi Industrial Area (LIA) is an industrial zone in Karachi city. It is situated near Landhi Town and Malir River. Groundwater samples (n = 16) were collected from boring wells at various depths (30-150 feet) that have been analyzed for quality assessment. Data revealed that the pH of groundwater is circum-neutral (6.98 to 7.44) and temperature varied between 25 to 28 °C. The turbidity of the groundwater samples varies from 0.08 to 8.12 NTU which is within the permissible limit (< 5 NTU) of WHO. On the other hand, a wide range of hardness (250-1650 mg/L) and TDS content (166-5600 mg/L) is observed. Where about half and a quarter of the total samples show objectionable TDS (> 500 mg/L) and hardness (> 500 mg/L) respectively. Major cations varied in the order of Na⁺ > Ca⁺² > Mg⁺² > K⁺ while anions show declining trend of Cl⁻ >SO₄⁻² >HCO₃^- > NO₃^-_. It is concluded that the groundwater of the study area is generally fit for drinking purposes and only two sites are found highly polluted.

Keywords: Groundwater, quality, industrial zone, Landhi, Karachi.

International Journal of Ground Sediment & Water

ISSN: 2372-0743 (print) ISSN: 2373-2989 (on line)

Journal Website1: https://ijgsw.eu.org/

             Website2: https://ijgsw.net/

Journal Old Website: http://ijgsw.comze.com/ is no longer used.

You can submit your paper to email: Jichao@email.com Or   IJGSW@mail.com