北仑区域不同粒径颗粒物的变化规律研究

Characteristics analysis of particulates with different size in Beilun district

利用北仑区域内2014年的PM10、PM2.5和PM1三种不同粒径的颗粒物的监测数据,对三种粒径的颗粒物的浓度及比例变化特征进行了研究,结果表明,三种粒径的颗粒物均存在较为一致的季节性变化规律,且PM1/PM10和PM2.5/PM10的变化规律较为一致;同时通过对典型的冬日、夏日和连续灰霾天过程的分析,发现不同粒径的颗粒物在典型日和连续灰霾天过程中均有较为一致的浓度变化规律,而且PM1/PM10和PM1/PM2.5的变化规律也均呈现出了一致性。

In this research,the concentrations of particulate pollution were investigated systematically through the monitor of particulates(PM10,PM2.5and PM1) in 2014. The results showed that typical seasonal and daily variation pattern existed for th the concentrations of particulate pollution. The same trend found between PM1/PM10 and PM2.5/PM10 in the seasonal variation pattern, and the same trend cought out between PM1/PM10 and PM1/PM2.5in the winter,summer and haze.