【摘要】 根据大庆市环境质量状况公报,2006~2010年的城市空气监测数据,以空气质量标准(GB3095-1996)为标准,利用spearman秩相关系数法,根据"十一五"期间空气质量监测数据,对大庆市空气主要污染物进行分析,得出以下结论:(1)从年际变化看,大庆市空气质量不断改善,空气质量达标天数不断提高;(2)大庆市监测的主要污染物SO2、可吸入颗粒物(PM10)、NO2和降尘,2010年年平均浓度均呈下降,变化趋势不显著;(3)在各种主要污染物中,降尘治理取得良好的效果.更多还原

【Abstract】 Using the method of Spearman rank correlation coefficient,a rank correlation analysis on the major air pollutants in Daqing city are gained,based on the urban monitoring data collected from the urban air communiques from 2006 to 2010 according to the air quality standard( GB3905- 1996). The following conclusions show:( 1) The air condition keep being improved during these years and the days with air quality that reaches to the set standard keep increasing.( 2) The average concentrations of major pollutants in Daqing city,including the SO2,particulate matter( PM10),NO2 and dust,all showed a declined trend,although not significant.( 3) Among all the major air pollutants,dust control achieved the best effect.更多还原