Analysis of Correlation between Concentration of Atmospheric Particulates and Humidity Based on the Aerodynamic Particle Sizer

• 作者: Chen Min Wu Jian Yuan Rui Zhang Can Zhang Dan Zhou Zhi'en
• 来源期刊: 气象与环境研究：英文版
• 学科: 地球科学
• 关键词: 大气颗粒物 相对湿度 中值粒径 质量浓度 相关性分析 空气动力学 谱仪 PM10
• 年，卷（期）: 2016,（2）
• 页码范围: 1-4
• 页数: 4页
• 分类号: X513

摘要

The TSI-3321 APS was used to measure concentration of atmospheric particulates in Ranjiaba region of Yubei District in Chongqing City during March 21- 29,2014,and the temporal variations in the hourly average mass and number concentration and median particle diameter of PM_(10) and PM_(2.5) as well as their correlation with relative humidity were analyzed. The results showed that the three indicators of PM_(10) and PM_(2.5) except for the mass concentration correlated with relative humidity,of which the correlation between the mass median particle diameter and relative humidity was the best. The correlation coefficient R~2 between the mass median particle diameter of PM_(10)( PM_(2.5)) and relative humidity was up to 0. 943( 0. 832). Therefore,relative humidity and pressure are key impact factors of indicators of particles.