Abstract
In recent years, various types of unexpected environmental accidents occurred frequently in China, which had caused great harm to economy and social development of China. The environmental risk assessment (ERA) model was built based on the related factors was described. Take the case of the proposed project of Cangzhou-Qiantongzhen freeway, the environmental risk was assessed by ERA model, and the corresponding countermeasures and emergency plans were put forward in the construction and operation period. The results show that the probability of water pollution in the sensitive sections along the freeway is 0.000927 to 0.011563times per year.
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