中文摘要：

基于光散射法研制了一种PM2.5在线监测系统,运用该系统对PM2.5质量浓度进行实时监测。鉴于PM2.5在空气质量评价中仅作为一个参考指标,专门针对PM2.5的评价机制研究较少,将层次分析法与模糊评价法相结合,对一段时间内PM2.5的浓度进行评价,得到时段内空气PM2.5的质量状况。模糊评价法可很好地反映评价等级划分的模糊性和连续性,层次分析法能够将复杂的系统进行定量处理,评价结果符合实际情况。

英文摘要：

Based on light scattering method,a PM2.5online monitoring system was established.The system was applied to monitor PM2.5concentration in real-time.Considering PM2.5 was only a reference indicator in the air quality index method,and few studies devoted to PM2.5evaluation mechanisms,this paper proposed fuzzy analytic hierarchy process,which combined fuzzy evaluation method with analytic hierarchy process,to evaluate PM2.5concentrations in a period of time.Fuzzy evaluation method could reflect the fuzziness and continuity between the evaluation level,and analytic hierarchy process could deal with complex systems quantitatively.The case analysis showed that the evaluation results of fuzzy analytic hierarchy process accords with actual conditions