【摘要】 选用北京城郊 5个代表站 2 0 0 0年可吸入颗粒物PM1 0逐时浓度监测资料 ,较为系统地统计分析了北京地区主要空气污染物—PM1 0的时空分布特征 ,其中包括PM1 0平均浓度和各等级出现频率的逐月变化、采暖期和非采暖期平均浓度的逐时变化。揭示了各代表站PM 1 0污染年、日变化趋势、采暖期和非采暖期日变化之间的差异 ,并分析了PM1 0浓度与地面常规气象要素的相关性更多还原

【Abstract】 Utilizing the monitoring data of inhalation particle matter (PM10) in 2000 at five stations in Beijing, the temporal and spatial variation features of PM10 concentration, the major air pollutant in Beijing, are studied. The analysis also includes the average concentration, the frequencies of different pollution grades, and the hourly variation during the winter heating period and non heating period. The results show that the regional distribution, the annual and daily variation of PM10 pollution are obvious, and the daily changes of PM10 concentration at each station during heating and non heating periods are different. At the same time, the statistical relation between the PM10 concentration and surface meteorological elements is analyzed.更多还原