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Table 1

Results of routine analysis of water samples in the Xinhe River (mg/L)

Sampling pointpHCODNH3-NTPFClPbCdCr6+
Headwaters of Xinhe River 6.5 25 0.2  226.7 0.06 0.002 0.003 
Estuary of Puji River 7.4 196 11 0.4 0.816 128 0.085 0.006 0.02 
Estuary of Qunying River 7.3 152 11.4 3.5 0.485 480 0.051 0.003 0.01 
Estuary of Wengjianhe River 7.7 145 10.1 2.4 0.756 345 0.076 0.008 0.02 
Estuary of Xinhe River 7.1 205 22 3.1  14.1 0.11 0.009 0.095 
Standard (Class V)a 6–9 40 2.0 0.4 1.5 250 0.1 0.01 0.1 
Sampling pointpHCODNH3-NTPFClPbCdCr6+
Headwaters of Xinhe River 6.5 25 0.2  226.7 0.06 0.002 0.003 
Estuary of Puji River 7.4 196 11 0.4 0.816 128 0.085 0.006 0.02 
Estuary of Qunying River 7.3 152 11.4 3.5 0.485 480 0.051 0.003 0.01 
Estuary of Wengjianhe River 7.7 145 10.1 2.4 0.756 345 0.076 0.008 0.02 
Estuary of Xinhe River 7.1 205 22 3.1  14.1 0.11 0.009 0.095 
Standard (Class V)a 6–9 40 2.0 0.4 1.5 250 0.1 0.01 0.1 

aThe State Standard of the People's Republic of China: Environmental quality standards for surface water (GB 3838-2002). Class V: water is suitable mainly for agricultural areas and areas with general landscape requirements.

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