宝鸡市可吸入颗粒物与气象要素的关系分析

讨论了宝鸡市2003--2005年可吸入颗粒物（PM10）API指数的季节分布、区域分布状况；运用统计软件SPSS分析了宝鸡市2003-2005年的API指数与同期气象要素的相关性．结果表明，宝鸡市API〉100日数百分数的季节变化为春季〉冬季〉秋季〉夏季，区域分布为1#〉3#〉2#〉4#；宝鸡市API与S02、N02、日均气压、08气压、08气温呈正的强相关，与湿度呈正的弱相关，与气温、风速、能见度呈负的强相关，与日照时数、降水量呈负的弱相关．

An analysis of the relationship between air particles and meteorological elements in Baoji City

This paper studies the seasonal and regional distribution of the PM10's API index from 2003 to 2005 and the interrelation between API index and the ground meteorological data during the same period of time collected in different monitoring stations in Baoji City.Using the SPSS,the API index,the percentage of days when API>100,and the correlation between API index and the ground meteorological elements are analysed.The percentage of days when API>100 in Baoji City with seasonal variations is spring>winter>autumn>summer,the regional distribution is 1#>3#>2#>4#.There is a strong positive correlation between the API index and the SO2,NO2,the average day pressure,08 pressures,08 air temperatures,and there is a weak positive correlation with humidity.There is a strong negative correlation between the API index and air pressure,wind speed,visibility,and there is a weak negative correlation with sunshine time,precipitation.