Table 1 WHO/USEPA standards for each parameter35,37.

From: Human health implications of metal pollution in the Betwa-Yamuna river system, India: evidence from Monte Carlo risk modelling

Parameter

WHO guideline value

Units

pH

6.5–8.5

–

EC

1500

µS/cm

TDS

1000

mg/L

As

0.01

mg/L

Cd

0.003

mg/L

Pb

0.01

mg/L

Cu

2.0

mg/L

Fe

0.3

mg/L

Mn

0.4

mg/L

Ni

0.07

mg/L

Zn

3.0

mg/L

Mo

0.07

mg/L

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