On real-time risk evaluation of accident in water quality control zone

The sudden water pollution is a main type of environmental accident. The time evolution risk of sudden water pollution accident is very important to select real-time measures to effectively reduce the temporal growing risk. The traditional evaluation methods have shortages of describing the evolution process of accident. This paper proposes a real-time risk evaluation method with real-time weight and index to predict the temporal growing risk of sudden pollution accident. The open channel of the Luanhe water supply system in Tianjin is selected as an example to evaluate the temporal risk evolution of the accident. The study provides a reasonable and effective method for the real-time evaluation of sudden pollution accident.