Introduction to water quality issues
Guanzhou, China
Guangzhou has a humid subtropical climate and is under the influence of the East Asian monsoon. The high intensity of rainfall places the urban drainage system under stress. Flooding in urban areas is often serious because of the inadequately maintained drainage network.
There is no consistent sludge treatment and disposal scheme for water pollution in the Yellow River and Pear River. At some locations water flow at these rivers is completely blocked, aggravating flooding and water pollution. Augmentation of river flow, and improved flood control and water quality are urgently needed.
Location of monitoring cross sections at the lower of the Zhucun River and the Pear River for comparison analysis between these two areas. There are 9 monitoring cross sections in Pear River and 7 monitoring cross sections in Zhucun River.
Water Quality Parameters Selection
Water Quality parameters selection is one of the important tasks for WQ assessment. Following significant WQ parameters have been selected for lab analysis:
|
Domain |
WQ Parameters |
|
Physical Parameters |
Temperature, Turbidity |
|
Chemical Parameters |
pH, Dissolved Oxygen (DO), Conductivity, Total Dissolved Solids (TDS), Biochemical Oxygen Demand (BOD), Chemical Oxygen Demand (COD), Total Nitrogen (TN), Total Phosphorus (TP), Nitrate, Nitrite, Ammonia, |
|
Micro-biological Parameters - |
Total bacterial count (TBC), Coliform groups, Fecal coliform group and Escherichia coli (E. coli) |