| 夏季持续高温天气对北京市大气细粒子(PM2.5)的影响 |
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| 引用本文： | 宋宇,唐孝炎,张远航,胡敏,方晨,曾立民,王玮.夏季持续高温天气对北京市大气细粒子(PM2.5)的影响[J].环境科学,2002,23(4):33-36. |
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| 作者姓名： | 宋宇 唐孝炎 张远航 胡敏 方晨 曾立民 王玮 |
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| 作者单位： | 1. 北京大学环境科学中心,环境模拟与污染控制国家重点联合实验室,北京,100871
2. 中国环境科学研究院,北京,100012 |
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| 摘 要： | 在1999-06-23北京市出现长达13d的持续高温期间对细粒子(PM2.5)质量浓度进行了观测.数据表明,持续高温期间细粒子质量浓度比非高温期间要高出2～3倍.但是通过对持续高温期间的气象数据进行分析,发现还是很利于污染物扩散.进一步分析同步监测的O3浓度、颗粒物中SO42-的粒径范围及其含量等数据,发现夏季持续高温期间活跃的光化学反应应该是北京市细粒子的主要来源.
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| 关 键 词： | 持续高温 细粒子(PM2.5) TEOM 光化学反应 北京市 |
| 文章编号： | 0250-3301(2002)04-04-0033 |
| 收稿时间： | 6/9/2001 12:00:00 AM |
| 修稿时间： | 2001年6月9日 |
Effects on Fine Particles by the Continued High Temperature Weather in Beijing |
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| Song Yu,Tang Xiaoyan,Zhang Yuanhang,Hu Min,;Fang Chen,Zen Liming and Wang Wei.Effects on Fine Particles by the Continued High Temperature Weather in Beijing[J].Chinese Journal of Environmental Science,2002,23(4):33-36. |
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| Authors: | Song Yu Tang Xiaoyan Zhang Yuanhang Hu Min ;Fang Chen Zen Liming and Wang Wei |
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| Institution: | State Key Joint Laboratory of Environmental Simulation and Pollution Control, Center for Environmental Sciences, Peking University, Beijing 100871. |
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| Abstract: | The continued high temperature weather (CHTW) appeared in Beijing since June 23 1999. The measurements showed the PM2.5 mass concentrations were 2 to 3 times of that in non CHTW period. However the diffusion conditions were still fine in these days. Both the highest hourly concentrations of O3 and the SO42- composition in PM2.5 can identify that the photochemical action was very active. It is the very reason to produce more fine particles in atmosphere. |
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| Keywords: | continued high temperature weather TEOM fine particles (PM2 5) photochemical action Beijing |
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