广州市春季大气颗粒物的粒径分布及能见度研究

doi:10.7523/j.issn.2095-6134.2010.3.005

中国科学院大学学报 ›› 2010, Vol. 27 ›› Issue (3): 331-337.DOI: 10.7523/j.issn.2095-6134.2010.3.005

广州市春季大气颗粒物的粒径分布及能见度研究

张涛¹, 陶俊², 王伯光¹, 张仁健³

1. 暨南大学环境工程系,广州 510632;
2. 环境保护部华南环境科学研究所,广州 510655; ;
3. 中国科学院大气物理研究所,北京 100029

收稿日期:2009-05-27 修回日期:2010-02-05 发布日期:2010-05-15
基金资助:
中国科学院知识创新工程领域前沿项目(IAP09320)、中央级公益科研院所基本科研业务专项基金(ZX20080905)和广东省科技攻关项目(2007B030102004)资助 

Research on size distribution of particles and its impact on visibility in urban Guangzhou during spring

ZHANG Tao¹, TAO Jun², WANG Bo-Guang¹, ZHANG Ren-Jian³

1. Department of Environmental Engineering, Jinan University, Guangzhou 510632, China;
2. South China Institute of Environmental Sciences, Ministry of Environmental Protection, Guangzhou 510655, China;
3. Institute of Atmosphere Physics, Chinese Academy of Science, Beijing 100029, China

Received:2009-05-27 Revised:2010-02-05 Published:2010-05-15

摘要/Abstract

摘要：

于2008年春季采用粒径谱仪和自动气象站等高分辨率仪器对广州城区大气颗粒物的粒径分布特征及其与大气能见度的相互关系进行研究.结果发现,0.5~20μm粒径范围的颗粒物数浓度随粒径增大而逐渐减小;质量浓度谱分布呈双峰型,分别在0.7μm和2.5μm出现峰值;而降雨对粗颗粒物的去除作用显著.0.5~2.5μm粒子浓度增加是大气能见度降低的重要原因.

关键词: 大气颗粒物, 数浓度, 质量浓度, 粒径分布, 能见度

Abstract:

High resolution instruments were used to investigate the atmospheric particles distribution characteristics and the impacts on visibility in urban Guangzhou during spring 2008. We found that the particle number density decreased while particle size was growing, along the mass concentration profile there existed two peaks at 0.7μm and 2.5μm, and the rainfall had great effects on scavenging of coarse particles. The rising concentration of those ranging from 0.5μm to 2.5μm was the important reason for the degraded visibility.

Key words: particle mass, number density, mass concentration, size distribution, visibility

中图分类号:

X513

张涛, 陶俊, 王伯光, 张仁健. 广州市春季大气颗粒物的粒径分布及能见度研究[J]. 中国科学院大学学报, 2010, 27(3): 331-337.

ZHANG Tao, TAO Jun, WANG Bo-Guang, ZHANG Ren-Jian. Research on size distribution of particles and its impact on visibility in urban Guangzhou during spring[J]. , 2010, 27(3): 331-337.

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广州市春季大气颗粒物的粒径分布及能见度研究

Research on size distribution of particles and its impact on visibility in urban Guangzhou during spring

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