摘要
在深入研究灰色理论的基础上,对传统关联分析模型做了两点修正,先是利用参考点简化了模型的计算公式,再根据污染排放贡献率的不同确定了各级权重系数。经过验证,修正模型的精度更高,稳定性更好。利用此模型准确地反映了杭州市经济技术开发区2003年环境空气质量为Ⅲ级,并对不同样本的空气质量进行了优劣性比较,进一步分析了该区各污染因子之间的相关关联程度,为各项决策提供支持。
The author modifies the classical grey relation model to evaluate atmospheric environmental quality. The first improvement is to predigest the model's formula using the reference point. The second modification is to assign the weight ratio based on the contribution of different pollutants. After validation, the modified model has advantages in precision and stability comparing with the traditional one. It has been used in valuing atmospheric environmental quality of Hangzhou Economic Development Zone in 2003, which indicates the grade is Ⅲ. This model can be used not only in comparing the atmospheric environmental quality of different sample areas, but also in analyzing the correlation degrees among the PM 10,SO 2 and NO 2. Furthermore, this model can be used on decision-making in controlling and reducing the atmospheric pollutants.
出处
《环境污染与防治》
CAS
CSCD
北大核心
2005年第4期308-310,共3页
Environmental Pollution & Control
关键词
灰色关联
模型
权重
空气质量
Grey relation Model Weight Atmospheric quality
