重庆市主城降尘监测研究

Research on Dust Fall in Chongqing Urban Area

对2006～2009年降尘监测以来重庆市主城国控点、道路点和建筑工地点3类降尘监测点的监测结果进行初步统计,首先分析了重庆市主城"蓝天行动"实施4年来降尘的变化趋势和控制效果,结果显示,3类监测点降尘量大小为国控点<建筑工地点<道路点,均呈下降趋势,降低幅度依次为道路点<工地点<国控点。其次对降尘与可吸入颗粒物(PM10)进行了相关性分析,结果表明两者呈高度正相关。最后对今后的降尘监测和污染控制工作提出了建议。

Preliminary statistics of Chongqing main city＇s dust fall monitoring results of state-controlled points,road points and construction sites points from 2006 to 2009 was analyzed in the paper.Firstly,the trend and control effects of dust fall in the last four years during the period of the main city＇s ＂Blue Sky Action＂ were analyzed,and the concentration of dust fall in three monitoring points is ranged from minimum to maximum as follow：state-controlled pointsroad pointsconstruction sites points.It shows a declining trend,and the decreasing range are as follows：road pointsconstruction sites pointsstate-controlled points.Secondly,the correlation between dust fall and respirable particulate matters （PM10） showed they have highly positive correlated relations.Finally,some jobs for the dust fall monitoring and pollution control are suggested.