摘要
利用济南市PM10日均浓度数据（2001—2007），从时间和空间两个方面对济南市PM10浓度变化进行分析。结果表明：济南市PM10污染较重，PM10年均浓度近似呈单峰分布，2006年最低，但与二级标准相比仍超标12％。季节变化呈近似“U型”分布，春冬季节明显偏高，夏秋季节较低，而PM10浓度月变化有明显的季节特征。空气质量良好的天数呈逐渐增加的趋势，而轻微污染天数则是此消彼长。PM10浓度在空间上具有北部、东北部和西南部较高，而东、西部较低的特点，污染比较严重的区域主要集中在济南市的主导风向（东北、西南风）上。所获结论可为济南市大气污染防治提供参考。
The temporal and spatial variations of PM10 mass concentrations in Jinan during the period of 2001 - 2007 show that the air pollution of PM10 is serious and the annual average mass concentration of PM10 approximately has a single peak distribution, which is lowest in 2006, however, still 12% beyond Grade lI air quality standard. Seasonal mass concentration variation approximately has a Ushaped distribution, which is markedly higher in spring/winter while lower in summer/autumn, and the monthly variation has obvious seasonal characteristics. Contrary to the trend of slight pollution days, the good environmental quality days are increasing. Spatial variation of PM10 mass concentration in Jinan is higher in north/northeast and lower in east/west. Heavy polluted area is mainly concentrated in the dominant wind direction （north-east and south-west）. The conclusion obtained can provide references for preventing and controlling air pollution in Jinan City.
出处
《山东建筑大学学报》
2010年第1期66-69,共4页
Journal of Shandong Jianzhu University
基金
山东省自然科学基金项目(Y2007G59)
关键词
可吸入颗粒物
时空变化
济南市
PM10
spatial and temporal variations
Jinan City
作者简介
刘泽常（1950-），男，山东烟台人，教授，硕士，长期从事大汽污染防治方面的研究．E-mail：liuzechang@sdjzu．edu．cn
