溢油环境风险综合评价OA

The environmental risk of oil spill was comprehensively evaluated based on the risk source of hazardous chemicals,sea-related sensitive targets and ship traffic density.Firstly,from the perspective of spatial distribution and quantitative characteristics,the impact factors of marine environmental risk in Ningbo City were extracted,and the assessment methods and index system of marine environmental risk were established.Then the GIS spatial information platform was used to evaluate the spatial distribution of environmental risks in Ningbo coastal waters.The results show that Cixi City in northwest and Zhenhai potential environmental risk of oil spill is extremely high,to the sensitivity of oil spill is relatively high,that these areas as the key control object;Beilun and Fenghua area in southeast coastal area and Xiangshan island in the east China sea,its environmental risk is general risk,that these areas for general control object,the potential environmental risk belongs to the medium sensitivity;The east and south-east of Xiangshan County and the south of Ninghai County have very low potential environmen-tal risk,and their sensitivity to oil spill is low.The evaluation results can provide a scientific ba-sis and effective reference for Ningbo's marine environmental risk prevention and control,emer-gency response measures,and the utilization and allocation of sea space resources.