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Updated: Jun 17, 2026
13:48
Design and Construction of an Urban Runoff Research Facility
Published on: August 8, 2014
Total pollution effect of urban surface runoff.
Hongbing Luo1, Lin Luo, Gu Huang
1State Key Laboratory of Hydraulics and Mountain River Engineering, College of Architecture and Environment, Sichuan University, Chengdu 610065, China.
Journal of Environmental Sciences (China)
|December 17, 2009
Summary
This study introduces mixed stormwater sampling to evaluate total urban runoff pollution. This method assesses pollution from diverse land uses and pipe systems, aiding effective stormwater management.
Area of Science:
- Environmental Science
- Water Quality Management
- Urban Hydrology
Background:
- Traditional urban runoff pollution research often relies on single land-use sampling, which is insufficient for evaluating total pollution effects.
- Assessing the cumulative impact of diverse land uses and urban infrastructure on water bodies is crucial for effective environmental management.
Purpose of the Study:
- To assess the total urban surface runoff pollution effect in the Futian River watershed using a novel mixed stormwater sampling strategy.
- To evaluate pollutants from various land uses and the rain pipe system discharged into the river.
Main Methods:
- Implemented mixed stormwater sampling at a street community's discharge outlet adjacent to the river.
- Monitored key water quality indices: Chemical Oxygen Demand (COD), Total Suspended Solids (TSS), Total Phosphorus (TP), Total Nitrogen (TN), and Biochemical Oxygen Demand (BOD).
- Developed a mathematical model using rainfall intensity, total land area, impervious, and pervious land area to simulate total pollution loads.
Main Results:
- Significant variations in total pollution loads (COD, TSS, TN, TP) were observed across seven rainfall events.
- The study established a mathematical model for simulating total pollution loads based on mixed stormwater sampling data.
- Identified Mass First Flush ratio (MFF30) and First 30% of runoff volume (FF30) as potential split-flow control criteria.
Conclusions:
- Mixed stormwater sampling provides a comprehensive approach to evaluating urban surface runoff pollution.
- The developed mathematical model can simulate total pollution loads effectively.
- MFF30 and FF30 values can guide the economical design of structural Best Management Practices (BMPs) for surface runoff treatment.
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