Health & Environmental Research Online (HERO)


Print Feedback Export to File
6582184 
Book/Book Chapter 
Chapter 20: Spatio-temporal variations of fluoride in the groundwater of Dindigul District, Tamil Nadu, India: A comparative assessment using two interpolation techniques 
Magesh, NS; Elango, L 
2019 
Elsevier 
Amsterdam, Netherlands 
GIS and geostatistical techniques for groundwater science 
283-296 
English 
is a chapter of 10369503 GIS and geostatistical techniques for groundwater science
Analysis of the spatio-temporal variations in fluoride concentrations was carried out to assess the contamination in groundwater samples taken from the Dindigul district of southern India. Two interpolation techniques were implemented to discriminate the groundwater with respect to fluoride concentration. In addition, a cross comparison using the root mean square error (RMSE) value was applied to evaluate the performance of both the interpolation methods. The results indicated a slight variation in the performance of both the models and it was found that the empirical Bayesian kriging method performed well in comparison with the inverse distance weighting method. The spatial maps reveal that the high a concentration of fluoride persists around the northeastern part of the study area. Around 48% of the samples were below the permissible limits and 4% of the samples were found to be above the permissible limits of the Bureau of Indian Standards. Such variations may pose a health risk to the human population in the study area. 
fluoride contamination; interpolations; groundwater; health risk; Dindigul 
Venkatramanan, S; Prasanna, MV; Chung, SY 
9780128154137