| 北京地区PM10和PM2.5质量浓度的变化特征 |
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| 引用本文： | 于建华,虞统,魏强,王欣,时建纲,李海军.北京地区PM10和PM2.5质量浓度的变化特征[J].环境科学研究,2004,17(1):45-47. |
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| 作者姓名： | 于建华 虞统 魏强 王欣 时建纲 李海军 |
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| 作者单位： | 1. 北京市环境保护监测中心,北京,100044;中国科学院,安徽光学精密机械研究所,安徽,合肥,230031
2. 北京市环境保护监测中心,北京,100044 |
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| 摘 要： | 北京市区2003-01-16-04—30PM10和PM25的监测结果表明，虽然ρ(PM10)，ρ(PM2.5)的变化幅度较大，但是其变化趋势非常相似。PM10，PM2.5质量浓度的日变化呈双峰特征分布。ρ(PM2.5)／ρ(PM10)的平均值为56．6％，说明可吸入颗粒物(PM10)中细粒子(PM2.5)的含量大于粗粒子(PM2.5-10)。
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| 关 键 词： | p（PM10） ρ（PM2.5） 双峰 |
| 文章编号： | 1001-6929(2004)01-0045-03 |
| 收稿时间： | 2003/8/7 0:00:00 |
Characteristics of Mass Concentration Variations of PM10 and PM2.5 in Beijing Area |
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| YU Jian-hu,YU Tong,WEI Qiang,WANG Xin,SHI Jian-gang and LI Hai-jun.Characteristics of Mass Concentration Variations of PM10 and PM2.5 in Beijing Area[J].Research of Environmental Sciences,2004,17(1):45-47. |
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| Authors: | YU Jian-hu YU Tong WEI Qiang WANG Xin SHI Jian-gang and LI Hai-jun |
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| Institution: | YU Jian-hua~ |
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| Abstract: | The monitoring results of PM_(10) and PM_(2.5) in Beijing city area from January 16 to April 30,2003 showed that they varied similarly and were well correlated,although they had wide variations in concentration.PM_(10) and PM_(2.5) had a similar diurnal variation with two peaks in the day.The average ratio of PM_(2.5) to PM_(10) was 56.6% for the whole campaign,indicating that PM_(2.5) had a larger part than other size particles in PM_(10). |
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