【摘要】 通过对南宁、桂林、北海市空气质量自动监测数据的分析得出 :三城市整体空气质量水平为 1级或 2级 ,即优或良 ,城市空气的首要污染物为可吸入颗粒物 ;桂林、北海两城市没有出现轻度或轻度以上的污染 ,特别是北海市空气质量为 1级“优”的天数占 90 .9% ,2级良占 9.1%。空气污染的浓度与气象条件有密切关系 ,其中南宁市主要污染物月平均浓度值与月平均气压呈正相关、与月平均气温、水汽压、降雨量、相对湿度、风速、 0 cm地温呈反相关关系。各种污染物日均浓度值也与地面、高空气象要素相关非常好。因此 ,在预报未来 2 4～ 36 h天气时 ,对空气质量可进行预报更多还原

【Abstract】 The analysis of the air quality data of Nanning,Guilin and Beihai obtained through automatic monitoring system shows that the general air quality of the three cities can be defined as grade I,that’s to say,the air quality in the three cities in rather good or good.Main air pollutant is particle that can be inbreathed;there is no pollution of low grade of above low grade in Guilin or in Beihai.Air quality in Beihai is especially good,days with grade I air quality account for 90 9%,and that with grade Ⅱ air quality account for 9 1%.Concentration of air pollution is closely related to the meteorological conditions,in which the monthly average concentration value of main pollutants in Nanning has a positive correlation with the monthly average air pressure,and an inverse correlation with monthly average air temperature,vapour pressure,rainfall,relative humidity,wind velocity and ground air temperature in a range of zero centimeter.The daily average concentration values of various kinds of pollutants are also closely related with the ground and upper air meteorological elements,therefore,the air quality can be forecasted while forcasting the weather situation in the future 24~36 hours.更多还原