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摘要本文通过统计常州市各监测点2015年空气质量指数及其他气象条件，来分析2015年常州地区空气质量情况及其影响因素。通过本文的分析，得出结论：1）2015年常州市空气质量优良率较高，总体情况较好，相比过去几年空气质量逐年变好，但是局部地区空气质量较其他区域稍差。2）常州市空气质量受降水影响较大。降水量达到中雨级别时，对污染物的吸附有较大的作用，空气质量都为优良；常州市空气质量受大气运动影响较大。当常州盛行东风向时，带来海洋风时，常州空气质量优良率较高。而冬季逆温层稳定时，不利于污染物扩散，是常州空气质量最差的时候。另外，常州空气质量还受温度，湿度等影响，但对常州空气质量的影响不大。42600
关键词：空气质量 影响因素 优良率 大气
Changzhou air quality and its influencing factors in 2015
Abstract
In this paper, by means of collecting AQI(Air Quality Index) in 2015 from different monitoring stations which in ChangZhou and other meteorological conditions to analyze the air quality situation in ChangZhou and the factors that influence it in 2015.
Through the analysis of this article, we can easily draw the conclusions:
1.In 2015, the excellent and good rate of air quality is higher, the overall situation is good. Compared with the past few years, air quality is getting better and better, nonetheless, regional parts is a bit poor.
2.In ChangZhou, air quality is greatly influenced by precipitation. When the precipitation reaches level of moderate rain, it plays an important role in adsorbing pollutant, the air quality is good. Simultaneously, air quality is greatly influenced by atmosphere motion.When prevailing east wind and the sea wind it brought, the excellent and good rate of air quality is higher.However, when the inversion layer is getting stable in winter, which prevents the diffusion of contaminant,so that ChangZhou suffer the worst air quality. In addition, the temperature and the humidity also affect the air quality in ChangZhou, but the impacts turn out to be small.
Key Words: Air Quality Influence factor Excellent and good rate Atmosphere
目 录
摘 要 I
Abstract II
目 录 III
图清单 IV
表清单 IV
1 绪论 1
2数据来源及方法 2
3结果分析 2
3.1现状分析 2
3.2各监测点对比 4
3.3影响因素 5
4小结与措施 11
4.1小结 11
4.2措施 11
参考文献 12
致谢 13图清单
图序号 图名称 页码
图3-1 2015年常州各季度空气质量情况图 4
图3-2 2015年11月-12月常州各监测点AQI指数累加图 5
图3-3 2015年12月常州各监测点AQI指数走势图 5