冬奥会文明城市背景下张家口市空气质量建模分析

Analysis of Air Quality Modeling in Zhangjiakou under the Background of Winter Olympic Games Civilized City Construction

冬奥会文明城市背景下,以气象局所提供的数据为依据,利用SPSS软件建模分析张家口市空气质量影响因素。首先建立张家口市空气质量指标体系获得数据,然后对天气情况、平均温度、风向、风力5个定性指标采用交叉列联表做差异性分析,分析不同指标因素对空气质量的影响,对PM2.5、PM10、SO_(2)、NO_(2)、CO、O_(3)6个定量指标建立判别分析模型,根据污染物浓度判定空气质量等级,最后综合评分向导,预测张家口市空气质量等级,提出改善建议。

Under the background of Winter Olympic Games civilized city construction,based on the data provided by Meteorological Bureau,the influencing factors of air quality in Zhangjiakou City were analyzed by using SPSS software.First,Zhangjiakou air quality index system was established to obtain data.Then,the paper analyzes the difference of weather,average temperature,wind direction and wind force by using cross column table,analyzes the influence of different index factors on air quality,establishes a discriminant analysis model for PM2.5,PM10,SO_(2),NO_(2),CO and O_(3),and determines air quality grade according to the concentration of pollutants.Finally,the air quality level of Zhangjiakou City is predicted and improvement suggestions are put forward.