基于聚类分析和主成分分析城市空气质量评价

摘要

With the development of urbanization , people's living standard is increasing day by day , but air qual-ity is still an issue .The air quality issue has become one of the key problems that the country has to face , be-cause it affects the daily life and health of people .Regarding the air quality issue of national key cities , the air pollutants quantity values and national standard values were compared and analyzed by cluster analysis ( K-Means), principal component analysis and discriminant analysis (Fisher method).The main factors that affect air quality were obtained .%随着城市化的发展,人们生活水平也日益提升,但空气质量并不乐观.空气质量问题成为我国面临的重点问题之一,影响着人们的生活与健康.针对全国重点城市空气质量问题,将空气质量各污染物的值与国颁标准值进行比较,采用聚类分析(K均值)、主成分分析、判别分析(费希尔判别法)对数据进行实验分析,得出影响空气质量的主要因素.