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《Pollution Control Technology》 2016-02
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A Time-Series Analysis of Atmospheric Pollutants Concentrations in the Dowmtown Area of Suzhou from 2011 to 2015

WU Ye-zheng;Suzhou environmental monitoring station;  
In this paper,a time- series analysis was applied to the atmospheric pollution situations concerning SO_2,NO_2,O_3,PM_(10),PM_(2. 5) and CO in the downtown of Suzhou,from 2011 to 2015. Based on the KZ filter,the character of seasonal component and trend- term component time series of the atmospheric pollutants concentrations were analyzed. By the method of Cross- Wavelet Analysis,the correlation and coherency between the time series of typical pollutants were studied,and found on varies time scales,the time series of CO and SO_2 concentrations were significantly positively correlated with those of NO_2 and PM_(2. 5) respectively,which meant the vehicle exhaust and coal burning might be among the major contributors of the atmospheric pollution in Suzhou during the last 5 years.
【Fund】: 苏州市科技支撑计划项目(SS201524)
【CateGory Index】: X51
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