摘要
研究以国家环保总局在网站上公开发布的重点城市每日空气污染指数(API)日报数据为基础,组成时间序列。然后针对不同空间分布城市的API时间序列进行了聚类分析,获得了这些城市空气污染的空间分布变化特征。发现我国城市空气污染存在"城市群"的特点,而且随季节变化。因此建议空气污染防治应当从单个城市的防治规划上升到城市群联合进行防治,达到改善城市空气质量的目的。
Based on the air pollution index （API） published on the website by Ministry of Environmental Protection,and composes the API to time series. Then do cluster analysis on the APIs of different cities in different area, to get the characteristics of changes of cities＂ air pollution in spatial distribution. At last, the research found the characteristics of our cities＂ air pollution is ＂city cluster＂, and changes by season.So,airPalu tion eongtol should adopt combined pievetion but not single prevention to im ptove the air qudtitg.
出处
《环境科技》
2009年第A01期102-106,共5页
Environmental Science and Technology
