[45]

Table 10. Limits of heavy metals concentration in fresh water.

Water Quality Monitoring and Associated Distributed Measurement Systems: An Overview 49

Cd 8.00 \*

Ni 7.10 + Pb 5.80 \* Se 71.0 #

Cd 10.0 \*

Cu 1.0 ++

Ni 632.0 \* Pb 50.0 \* (adults)

Designated Use Metal Water Hardness (mg/l) Limit (ug/l)

 As 50.0 # Ag 0.10 #

 Cu 2.90 Hg 0.025 \*

Zn 76.6 \*

Table 11. Limits of heavy metals concentration in estuarine and coastal water.

Designated Use Metal Water Hardness (mg/l) Limit (ug/l)

Consumption As 0.05 (mg/l) Ba 1.0 (mg/l)

Cr 0.05 (mg/l)

Hg 144.0 ng/l \*

Zn 5.0 \*

Table 12. Limits of heavy metals concentration in water for human consumption.

Irrigation Cd N/A 10 Cu 200 Pb 5000 Zn 2000

Table 13. Limits of heavy metals concentration in irrigation water.

Designated Use Metal Water Hardness (mg/l) Limit (ug/l)

Estuarine/ Coastal
