The Trend Of Shijingshan District Dustfall And PM₁₀ Research

At the end of2010, Shijingshan District Shougang company a full cessation ofsmelting and rolling operations to complete the relocation, the traditional heavyindustry Shijingshan District began the transformation of development strategy,Shijingshan District air pollution in this situation will be the emergence of a newsituation, at the same time, the environmental protection work is facing the goal ofnew challenge, based on this basis, the corresponding research on air pollutionsituation on the new situation in Shijingshan District.This paper uses the variance of the correlation coefficient, Spearman rankcorrelation coefficient, analysis, wavelet analysis, the time trend of dustfall, PM₁₀andanalysis of atmospheric and meteorological factors of. In the analysis process, basedon the data of SPSS15.0,Excel and Matlab7.0software correlation coefficient,variance analysis, wavelet analysis and data processing, the relationship between thechanges and meteorological factors that dustfall, PM₁₀, provides reference for controlof pollutants to carry out.The analysis conclusions are as follows: Shijingshan District dustfall and PM₁₀in the year, season, month are correlated, and the overall showed a downward trend.The periodic change of season, month, and can be used in wind direction, wind speed,precipitation and other meteorological factors, well explain the variation of monthly.At the same time, they also have their own characteristics, as follows:（1） The dust fallsignificant seasonal difference, the highest in spring, summer and winter are similar,the lowest in autumn. Every year in4,5,6months appears the obvious rise, in9,10,was significantly down. The existence of multiple periodic, the periodic oscillation,36months is the most significant. Positive correlation with level2wind formation,there is a good negative correlation with the westerly, relationship with theprecipitation is relatively complex.（2） The PM₁₀seasonal differences were notobvious annual dustfall, earlier than the dustfall in3,4,5months increasedsignificantly,9,10,11, there has been a significant rise again, appeared double peaks,fluctuation no annual dustfall significant fluctuations. In each cycle of periodicoscillation,60months is the most significant.（3） Amount of dustfall and PM₁₀in theindividual month and season with the corresponding linear equation.