灰色关联度模型及其在大气环境质量评价中的应用

Model of gray relative level and its application in quality evaluation of air environment

采用灰色关联度模型综合评判法对水泥厂周围大气的环境质量进行了综合评价 ,并将评价结果与模糊距离模型综合评判法所得结果进行了对比 .结果表明 ,两种评价法的评价结果基本一致 ,但模糊距离模型综合评价法所得结果不能反映部分测点大气质量的差异 ,而灰色关联度模型综合评价法则能够反映 .因此 ,采用灰色关联度模型综合评判法对大气环境质量进行综合评价是一种简便、实用并且更为准确的评价方法 .

The model of gray relative level and its application in quality evaluation of air environment are introduced. The quality of the air around a cement plant is evaluated by using this method. The results are consistent with that of the model of fuzzy distance. The model of fuzzy distance can not reflect the difference in air quality in different sites but the model of gray relative level can. Therefore the model of relative level is not only scientific and simple but also convenient and practical.