20世纪末广东省三大城市大气环境质量综合评价——改进密切值法的扩展应用

大气环境质量综合评价是一个城市环境质量考核的重要指标，改进的密切值法是其中一种切实可行的评价方法。通过对1991-2000年10年间广东省三大城市——广州、深圳和珠海的大气环境质量进行综合评价，发现20世纪末，大气环境质量最好的是珠海市，最差的是广州市。与广东省平均水平相比、三大城市中。广州市污染程度高于全省平均水平。从空气环境质量的变化趋势来看，自1997年开始，三大城市大气环境质量趋于好转，为新世纪城市空气环境质量改善提供了良好的基础。

THE COMPREHENSIVE AIR ENVIRONMENTAL QUALITY ASSESSMENT AT THE END OF THE 20TH CENTURY——MODIFIED OSCULATING METHOD USING IN A NEW FIELD

As a index, the comprehensive air environmental quality assessment is important for a city. Modified osculating method does well to the assessment. Guangzhou, Shenzhen and Zhuhai are the biggest and the most important cities in Guangdong Province. Osculating method was used to analyze the air quality data during ten years from1991 to 2000, some results were got. Air environmental qualities in the three cities were worse than the average quality of the whole province. And during the three cities, Zhuhai City is the best, Guangzhou City is the worst. From 1997, three cities have better air environmental qualities, which is the base to improve the air quality in the 21st century.