广佛肇近十年空气污染指数研究

以2003年3月1日～2012年2月29日连续3288d的空气污染指数为基础。运用时间序列的统计学方法，探讨了广佛肇经济圈的空气污染问题，也为区域大气污染联防联治提供科学依据与数据支持。结果表明：3个城市冬季空气质量较差，夏季空气质量较好，近10年空气质量有变好的趋势。广州和佛山SO2污染主要集中在夏季，肇庆在春季和秋季的SO2污染天数相对较多。NO2污染最容易出现在冬季，广州已出现汽车尾气污染特征。广佛肇属于颗粒物污染主导型，表现出常年污染性特征，PM10季节性变化不大。佛山陶瓷工业是PM10浓度较高的主要影响因素，肇庆空气质量总体上较好。建议佛山重点加强燃煤的脱硫除尘，广州应控制汽车尾气排放．广佛肇经济圈应形成区域性大气污染联防联治机制。

Research on Air Pollution Index of the Cities of Guangzhou,Foshan and Zhaoqing during the Last Decade

Based on the collected data of Air Pollution Index from March 1st 2003 to February 29th 2012 amounting for 3288 days,this aritcle uses the statistical methods of time series to further explore the air pol- lution in the economic circle of Guangzhou,Foshan and Zhaoqing,which could provide a scientific basis and data for regional air pollution prevention. It has found that, air quality in summer was better while it was worse in winter. During the last decade, Air Pollution Index tended to go down overall. In Guangzhou and Foshan,SO2 pollution was mainly distributed in summer. On the other hand, there were more days of SO2 pollution in spring and autumn in Zhaoqing. NO2 pollution was most likely to appear in winter,Guangzhou had been polluted by automobile exhaust. PM10 was the chief pollutant all over the year in Guangzhou Fos- han and Zhaoqing, showing little seasonal variation. Ceramic industry in Foshan had a significant contribution to high concentration of PM10. Generally, air quality in Zhaoqing was good, and Foshan should focus on strengthening desulphurization and dust removal as well as Guangzhou should control automobile exhaust emissions. It was necessary to set up regional air pollution prevention mechanism in the economic circle of Guangzhou,Foshan and Zhaoqing.