Table 5 Statistical values of observed physico-chemical characteristics in water samples of Mandakini valley, Uttarakhand, India (Na = 72).

From: A systematic study on occurrence, risk estimation and health implications of heavy metals in potable water from different sources of Garhwal Himalaya, India

 

Temperature

pH

EC

TDS

Unit

°C

–

µS cm−1

mg L−1

Range

28.3–32.8

2.79–7.71

56.7–491.1

39.3–383.3

A.M.b ± S.D.d

30.3 ± 1.26

6.52 ± 1.24

170.4 ± 89.4

130.0 ± 63.2

G.M.c ± S.D.d

30.3 ± 1.26

6.36 ± 1.24

150.1 ± 89.4

117.2 ± 63.2

Skewness

0.14

− 1.84

1.18

1.48

Kurtosis

− 1.38

2.63

1.45

3.09

MPLe (BIS)

–

6.5–8.5

–

2000

MPLe (WHO)

–

–

1500

1000

MPLe (USEPA)

–

 > 6.5–< 8.5

–

–

  1. aNumber of samples, bArithmetic mean, cGeometric mean, dStandard deviation, eMaximum permissible limit.
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