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Risk determination method for accidental water basin contamination based on risk source coupling with sensitive
Zongfeng Li1,2,3, Bo Zeng1,2,3, Tinggang Zhou1,4
1a Ministry of Education , Key Laboratory of Eco-environments in Three Gorges Reservoir Region , Chongqing 400715 , People's Republic of China.
A new method evaluates water basin pollution risks by linking pollution sources to sensitive areas. This approach provides rapid, effective risk zoning to protect human health and ecological security.
Area of Science:
- Environmental Science
- Risk Assessment
- Water Resource Management
Background:
- Accidental water basin pollution poses significant threats to human health and ecological security.
- Current methods for evaluating these threats are often slow and lack effectiveness.
Purpose of the Study:
- To develop a novel risk evaluation method for basin accidents by coupling risk sources with sensitive targets.
- To establish a system for evaluating zone accident risk levels in basins and preventing water pollution.
Main Methods:
- Incorporated the interplay between risk sources and sensitive targets.
- Evaluated zone risk levels considering different sources, control mechanism effectiveness, target vulnerability, and spatio-temporal relationships.
- Developed and implemented a risk system including indicator quantification, risk zoning, and result verification.
Main Results:
- The developed risk zoning model, tested in the Three Gorges Reservoir region, provided rapid, effective, and reliable zoning results.
- Field investigation verified the accuracy and utility of the risk zoning model.
Conclusions:
- The proposed research method offers a theoretical reference and technological support for evaluating water basin accident risks.
- The findings are valuable for assessing and protecting aquatic environments, particularly in regions like the Three Gorges Reservoir.
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