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齐齐哈尔市PM2.5与PM10污染趋势及相关性分析
Pollution Trend and Correlation Analysis of PM2.5 and PM10 in Qiqihar
投稿时间:2017-04-27  修订日期:2017-06-27
DOI:10.19316/j.issn.1002-6002.2018.01.08
中文关键词:  PM2.5  PM10  质量浓度  时间变化  齐齐哈尔
英文关键词:PM2.5  PM10  mass concentration  temporal variation  Qiqihar
基金项目:齐齐哈尔市工业攻关项目(QGG201309017)
作者单位
郑永杰 齐齐哈尔大学化学与化学工程学院, 黑龙江 齐齐哈尔 161006 
王梅梅 齐齐哈尔大学化学与化学工程学院, 黑龙江 齐齐哈尔 161006 
孙萌 青岛市环境监测中心站, 山东 青岛 266003 
高雅 齐齐哈尔大学化学与化学工程学院, 黑龙江 齐齐哈尔 161006 
田景芝* 齐齐哈尔大学化学与化学工程学院, 黑龙江 齐齐哈尔 161006 
于文柱 齐齐哈尔环境监测中心, 黑龙江 齐齐哈尔 161006 
通讯作者:田景芝*  齐齐哈尔大学化学与化学工程学院, 黑龙江 齐齐哈尔 161006  
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中文摘要:
      对2014—2016年齐齐哈尔市PM2.5与PM10质量浓度的时间变化特征进行简要分析,并探究PM2.5/PM10以及PM2.5与PM10的相关性。结果表明:2014—2016年齐齐哈尔的PM2.5与PM10的年均质量浓度分别为36.7、62.9 μg/m3,且呈逐渐下降趋势;冬季的PM2.5与PM10浓度最高,秋季次之,春季与夏季相对较低;2014—2016年PM2.5与PM10质量浓度月变化趋势基本相同,整体呈现2—6月逐渐下降,9—11月逐渐上升的规律;PM2.5与PM10质量浓度的日变化均呈双峰现象;对PM2.5与PM10进行线性拟合,相关系数为0.896 3。同时,残差分析也说明两者拟合情况良好,四季相关系数为r秋季(0.982 2) > r冬季(0.964 4) > r夏季(0.943 9) > r春季(0.829 6);2014—2016年PM2.5/PM10平均值为55.27%,大气颗粒物PM2.5的贡献率高达一半以上。
英文摘要:
      The temporal variation characteristics of PM2.5 and PM10 mass concentrations in Qiqihar during 2014-2016 were analyzed briefly in this paper, and the PM2.5/PM10 ratio and the correlation between PM2.5 and PM10 were investigated. The results showed that the average annual concentration of PM2.5 and PM10 in Qiqihar respectively were 36.7 μg/m3 and 62.9 μg/m3 in 2014-2016, which gradually decreased over the past three years; PM2.5 and PM10 in winter were the highest all the year, followed by autumn, and it was low in spring and summer relatively; In the past three years, the trend of monthly variation of PM2.5 and PM10 was basically the same, and the whole trend showed a decreasing gradually from February to June, and a gradually increasing from September to November; The diurnal changes of PM2.5 and PM10 were bimodal; The linear correlation between PM2.5 and PM10 was obtained, and the correlation coefficient was 0.8963. Meanwhile, residual analysis also showed fine goodness of fit. The correlation coefficients of four seasons were:rautumn (0.9822) > rwinter (0.9644) > rsummer (0.9439) > rspring (0.8296); The average PM2.5/PM10 ratio was 55.27% in recent three years, which indicated that the contribution rate of atmospheric particulate matter (PM2.5) was more than half.
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