Related Experiment Video
Updated: Aug 9, 2026

Design and Construction of an Urban Runoff Research Facility
Published on: August 8, 2014
Nitrate and fluoride levels in ground waters of Davanagere Taluka in Karnataka
S Manjappa1, B E Basavarajappa, G P Desai
1Environmental Science and Technology Study Centre, Bapuji Institute of Engineering and Technology, Davanagere 577 004, Karnataka, India.
Abstract:
The quality of ground water supplies in Davanagere Taluk, situated in central part of Karnataka has been investigated with respect to pH, dissolved solids, chlorides, nitrates and fluorides. The levels of pH, dissolved solids and chlorides were found within the safe limits as prescribed by BIS, for more than 95% of the samples. Out of the 61 different borewell samples analysed, selected from different areas of Davanagere taluk, 26% of the samples are found to contain fluorides less than 0.50 PPM (lower safe limit prescribed by BIS) and 11.5% of the samples are found to contain more than 1.5 PPM of fluorides (higher safe limit prescribed by BIS). Further, it was also found during study that, 16.00% of the borewell samples analyzed, were found to contain more than 100.00 PPM of nitrates (measured as NO3 mg/L, safe limit prescribed by BIS). The values of fluorides and nitrates observed in different samples were in the range of 0.19 - 2.06 PPM and 0.08 - 308 PPM, respectively.
More Related Videos
08:49Vegetated Treatment Systems for Removing Contaminants Associated with Surface Water Toxicity in Agriculture and Urban Runoff
Published on: May 15, 2017
09:51TD-DFT Guided Advanced E-Eye Sensing Technique for On-site Quantification of Fe, Cr, F, and As in the Environmental, Biological, and Food Samples
Published on: September 19, 2025
Related Concept Videos
Key Elements for Plant Nutrition
Precipitation Reactions
Qualitative Analysis
For instance, group IV...
Precipitation and Co-precipitation
Minerals
Quality of Water