Hydro-geochemical Investigation and Quality Assessment of Groundwater for Drinking and Agricultural Use in Jawaharlal Nehru University (JNU), New Delhi, India - Management of Natural Resources in a Changing Environment - page 14

Table 4 Correlationmatrixofvariousparametersanalyzedinpre-monsoonandpost-monsoonseason
Parameter Ca 2+ Mg 2+ Na + K + HCO 3 − SO 4 2− Cl − F − PO 4 3− pH TDS

Ca 2+ 1.00

Mg 2+ 0.28 1.00

−0.32

Na + 0.60 0.03 1.00

0.83 −0.22

K + 0.27 − 0.38 0.59 1.00

0.56 −0.40 0.49

HCO 3 − 0.85 0.14 0.33 −0.14 1.00

0.52 −0.27 0.31 −0.17

SO 4 2− 0.51 0.39 −0.04 −0.58 0.77 1.00

0.02 −0.48 −0.08 −0.44 0.73

Cl − 0.49 0.04 0.96 0.72 0.11 −0.26 1.00

0.79 −0.10 0.95 0.63 0.05 −0.38

F − −0.67 0.24 −0.32 −0.63 −0.45 0.09 −0.33 1.00

−0.64 0.00 −0.29 −0.55 −0.44 0.15 −0.32

PO 4 3− −0.29 0.10 −0.26 −0.59 0.06 0.53 −0.40 0.64 1.00

0.14 −0.27 0.01 0.21 0.34 0.48 −0.11 −0.30

pH −0.46 −0.02 0.22 0.07 −0.59 −0.29 0.29 0.56 0.27 1.00

−0.33 0.08 0.06 −0.29 −0.21 0.25 −0.02 0.65 0.36

TDS 0.71 0.10 0.99 0.59 0.43 0.04 0.94 −0.42 −0.31 0.10 1.00

0.88 −0.19 0.99 0.55 0.31 −0.14 0.96 −0.38 0.00 −0.03

Pre-monsoon values are in italics and post-monsoon values are in bold