Introduction to water quality issues
Guanzhou, China
- Water quality issues in Guangzhou, China, are a significant concern.
- The region's humid subtropical climate and the East Asian monsoon contribute to high rainfall intensity, straining the urban drainage system.
- Inadequately maintained drainage networks result in severe flooding in urban areas.
- Lack of a consistent sludge treatment and disposal scheme for water pollution in the Yellow River and Pear River is a major problem.
- Blockages in water flow along these rivers exacerbate flooding and water pollution.
- Urgent measures are needed to enhance river flow, improve flood control, and address water quality concerns.
- Monitoring cross sections:
- 9 monitoring cross sections along the Pear River.
- 7 monitoring cross sections along the Zhucun River.
- These cross sections enable comparison analysis between the two areas to assess water quality conditions and potential variations.
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) |