Spatial Distribution Pattern of Fluoride and Nitrate in Groundwater Using Advanced Technical Tool - A GIS Approach

Madhu K. N¹, K. Lokesh², Manjappa S³ and Suresh B^4,

¹Department of Chemistry, Tontadarya College of Engineering Gadag-582101, Karnataka, India

²Department of Civil Engineering, Tontadarya College of Engineering Gadag-582101, Karnataka, India

³Department of Chemistry, University BDT College of Engineering, Davangere-577005, Karnataka, India

⁴Department of Civil Engineering, Bapuji Institute of Engineering & Technology, Davangere-577 005, Karnataka, India

Cite this paper:
Madhu K. N, K. Lokesh, Manjappa S and Suresh B. Spatial Distribution Pattern of Fluoride and Nitrate in Groundwater Using Advanced Technical Tool - A GIS Approach. Applied Ecology and Environmental Sciences. 2021; 9(11):931-936. doi: 10.12691/aees-9-11-3

Abstract

In order to detect the fluoride and nitrate content of the ground water in Koppal city in Karnataka, India and also for its spatial distribution mapping, an experimental work was taken up by selecting 25 bore wells from different stations in and around Koppal city. Ground water samples were collected for both pre-monsoon and post-monsoon seasons and fluoride and nitrate was detected using standard methodology. Locations and altitudes of the selected bore wells were also noted using GPS instrument. Fluoride and Nitrate content, its spatial distribution mapping has been drawn using advanced technical tool (GIS) for the study area. Spatial map has been prepared using an inverse distance weighting technique, which indicates the fluoride and Nitrate content in the study area. The maximum content fluoride was noticed in the Hemareddi Mallamma Nagar, KGW-11 (3.77mg/L) while the minimum was observed in Chikkabaganal, KGW-1(0.97 mg/L). The maximum content of Nitrate was recorded in the Veerapur, KGW-16 (73.98 mg/L) but Dadegal, KGW-13 (13.08 mg/L) showed minimum during the study period.

Keywords:
fluoride nitrate spatial distribution GIS

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