空气中PM_(10)和PM_(2.5)质量浓度分布均匀性研究——以娄底市为例

Uniformity Research of PM_(10) and PM_(2.5) Mass Concentrations Distribution——Taking Loudi Urban as an Example

对娄底市环境空气中的PM_(10)、PM_(2.5)质量浓度进行自动监测,并统计分析其分布的均匀性.结果表明,短时间看,PM_(2.5)较PM_(10)分布均匀;长时间看,PM_(10)、PM_(2.5)分布均匀性相当;在4个不同的功能区,PM_(10)、PM_(2.5)分布无明显的差异性和规律性.

Based on the city of Loudi,the concentrations of PM_(10) and PM_(2.5)in ambient air were monitored automatically,and their uniformity was also analyzed. The result indicated that the distribution of PM_(2.5)concentrations was more uniform than that of PM_(10) in a short period of time. However,in a long period of time,the distribution look the same between PM_(10) and PM_(2.5). In addition,with regard to the distribution of 4 functional areas,there was no significant difference and regularity between PM_(10) and PM_(2.5).