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主要基于因子分析法构建因子诊断模型,对大连湾主要污染因子及空间分布特征进行研究,并根据海湾监测站位主要污染因子的优势比值以及不同类型污染源的排污特征分析,诊断目标区域内主要污染来源及不同类型污染源对邻近海域的贡献率。因子诊断结果表明,大连湾主要污染方式有5类,其中工业污水、生活污水和机械加工废水是主要的污染来源;污染源贡献率研究结果表明,臭水套海域各站点生活污水、加工制造和工业废水的贡献率最大值分别为24.7%、44.1%和40.1%。
Based on the factor analysis method, this paper constructs the factor diagnosis model to study the main pollution factors and the spatial distribution characteristics of the Dalian Bay. Based on the dominant ratio of major pollution factors in the Bay Station and the analysis of sewage characteristics of different types of pollution sources, the main pollution in the target area Sources and contribution of different types of pollution sources to the adjacent sea area. The results of factor diagnosis showed that there are five main types of pollution in Dalian Bay, of which industrial wastewater, domestic sewage and mechanical processing wastewater are the main sources of pollution. The contribution rate of pollution sources shows that domestic sewage, processing and manufacturing The contribution rate of wastewater was 24.7%, 44.1% and 40.1% respectively.