Table-3.
Number of HM, mg/L | Threshold level value | Economy | |||||
---|---|---|---|---|---|---|---|
| |||||||
No. 1 | No. 2 | ||||||
|
|
||||||
Spring | Summer | Fall | Spring | Summer | Fall | ||
Cadmium | 0.03 | 0.0153±0.1 | 0.0048±0.02 | 0.0058±0.2 | 0.0132±0.02 | 0.0070±0.13 | 0.0201±0.4 |
Lead | 0.1 | 0.0816±0.03 | 0.0124±0.1 | 0.0053±0.4 | 0.0652±0.5 | 0.0149±0.1 | 0.3831±0.02 |
Lead | 0.1 | - | - | - | - | - | - |
Mercury | 0.05 | - | - | - | - | - | - |
–=Not found, HM=Heavy metals