—Precipitation obtained in the form of rain may
contribute to surface and sub-surface sources. In this study
precipitation and groundwater sampling was done and analyzed
for chemical composition in urban, semi-urban and forest areas
for the period 2009-2011. The scatter diagram of D v/s 18O of
groundwater samples were drawn and compared with LMWL.
The result indicating that the precipitation plays significant role
in the groundwater recharge in the study region. The present
study shows that lowest pH recorded was 6.82 at Bangalore
North whereas highest 8.13 at Ramanagar. ANC found to be in
Ramanagar (8.25 meq/100g), Bangalore north (2.71 meq/100g),
indicating that it has inherent buffering capacity to neutralize
the acidity of the precipitation. Soil CEC is in the order
—ANC-acid neutralizing capacity, CEC-cation
exchange capacity, isotopic composition, pH.
G. P Shivashankara is with the Department of Civil Engineering, PES
College of Engineering, Visvesvaraya Technological University, Karnataka,
India (e-mail: firstname.lastname@example.org).
G. V. Sharmila is with the Environmental Engineering Department of
Vidyavardhaka College of Engineering and PES College of Engineering,
Mandya, Karnataka, India.
R. Shruthi is with the department of Civil Engineering at BGS Institute of
Cite: G. P. Shivashankara, G. V. Sharmila, and R. Shruthi, "Interaction of Precipitation and Groundwater Chemistry — Karnataka, India," International Journal of Environmental Science and Development vol. 7, no. 8, pp. 568-575, 2016.