【摘要】 考虑到环境空气的复杂性,选用计入空气污染指数的SO2、NO2和可吸入颗粒物PM10等3个指标,采用区间数排序法对桂林市2003—2009年的环境空气质量进行综合评价。首先分别对单个指标进行排序,就SO2、NO2而言,2004年的环境空气质量最优;就PM10而言,2007年的环境空气质量最优。通过计算这3个指标的模糊权重系数、综合区间数的相对优势度矩阵及排序向量,其综合评价结果是,2004年桂林市环境空气质量最优,其他依次为:2008、2003、2007、2005、2006、2009年。更多还原

【Abstract】 For the complexity of environmental air,the method of ranking interval numbers was used to analyze Guilin environmental air quality from 2003 to 2009 by three indexes SO2,NO2 and PM10.Single index order is used in the method of ranking interval numbers.As far as SO2 and NO2 are concerned,the air quality of Guilin in 2004 is the best;but for PM10,the air quality of Guilin in 2007 is the best.The comprehensive assessment results are found through calculating the fuzzy weight coefficients,the relative superiority matrix of the comprehensive interval numbers and the ranking vectors of three indexes SO2,NO2 and PM10.It is shown that the air quality of Guilin in 2004 is the best.The other years are 2008,2003,2007,2005,2006 and 2009.更多还原