Water and Energy International
SCOPUS
  • Year: 2021
  • Volume: 64r
  • Issue: 9

GIS-Based Interpolation Approach for Mapping Groundwater Quality Parameters for Sustainable Water Management

  • Author:
  • Nadirsha P.S. Nawab1, Athira Santhosh1, A.A. Gado1,2, Anbazhagi Muthukumar1, Muthukumar Muthuchamy1
  • Total Page Count: 8
  • Page Number: 6 to 13

1Department of Environmental Science, School of Earth Science Systems, Central University of Kerala, Kasaragod, Kerala, India

2Department of Physics, Kebbi State University of Science and Technology, Aliero, Kebbi State, Nigeria

Online published on 19 January, 2022.

Abstract

Monitoring and assessing water quality plays a very vital role in the sustainable management of water. The present study used the Inverse Distance Weighted method (IDW) for interpolating groundwater samples collected from 24 sites in Kurichithanam village of Kottayam district, Kerala, India. The study analyzed the important water quality parameters such as pH, Electrical Conductivity (EC), Total Dissolved Solids (TDS), Calcium (Ca), Potassium (K), Sodium (Na), and Dissolved Oxygen (DO). The analyzed samples are compared with the Bureau of Indian Standard (BIS) and World Health Organization (WHO) limits. Geographical Information System (GIS) based spatial interpolation method is used to identify the concentration of pollutants from known to unknown sites of the study area. The result of chemical analysis and spatial interpolation reveals that all other parameters are within the permissible limit except pH. The pH shows a slightly acidic nature in water samples collected from the study area due to the acidic nature of the soil. All other parameters were within the standard limit, which makes groundwater of the study area is suitable for drinking and irrigational purposes.

Keywords

Spatial Interpolation, Geographic Information System, Inverse Distance Weighting, Physico Chemical Parameters, Groundwater quality, Sustainable Water Management