Table 1.

Indicators for drinking water quality established by China.

Indicators	Values
Arsenic (mg/L)	0.01
Cadmium (mg/L)	0.005
Chromium (hexavalent, mg/L)	0.05
Fluoride (mg/L)	1.0
Nitrate (in N, mg/L)	10
Aluminum (mg/L)	0.2
Manganese (mg/L)	0.1
Chloride (mg/L)	250
Sulfate (mg/L)	250
TDS (mg/L)	1000
Total hardness (in CaCO3, mg/L)	450