| 珠江三角洲地区亚运期间颗粒物污染特征 |
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| 引用本文： | 胡伟,胡敏,唐倩,郭松,闫才青.珠江三角洲地区亚运期间颗粒物污染特征[J].环境科学学报,2013,33(7):1815-1823. |
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| 作者姓名： | 胡伟 胡敏 唐倩 郭松 闫才青 |
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| 作者单位： | 北京大学环境科学与工程学院,环境模拟与污染控制国家重点联合实验室,北京100871 |
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| 基金项目： | 国家自然科学基金项目(No.21025728,20977001,21190052);环保公益性行业科研专项重大项目(No.201009002) |
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| 摘 要： | 为研究2010年广州亚运会期间珠江三角洲地区颗粒物污染特征,2010年11月11日—30日分别在广州市区城市点及下风向鹤山区域点采集24h颗粒物样品,对其主要化学组分(有机碳OC、元素碳EC和水溶性离子)进行测量.结果显示,观测期间广州和鹤山PM2.5平均质量浓度分别为(73.3±16.5)μg·m-3和(98.2±20.8)μg·m-3.鹤山PM10平均浓度高达131.6μg·m-3,且PM2.5占PM10的74%,表明区域PM2.5污染凸显.广州和鹤山PM2.5中二次无机离子(SNA)分别占39%和42%,有机物(OM)分别占31%和26%,EC分别占5%和6%.根据EC示踪法粗略估算,广州和鹤山PM2.5中一次有机碳POC分别占15%和13%,二次有机碳SOC分别占4%和3%.总体上,广州和鹤山PM2.5中二次生成(SNA+SOA)均约占50%,表明珠江三角洲地区PM2.5区域性二次污染的特征.广州市区PM2.5及SNA、Cl-和EC明显低于区域点鹤山浓度水平;与2004年同期研究(PRIDE-PRD2004)结果相比,气象条件相似,而广州市区PM2.5及EC浓度分别显著降低达29.6μg·m-3(29%)和3.5μg·m-3(49%),反映出亚运期间一次排放得到有效控制.
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| 关 键 词： | PM2.5 化学组成 二次生成 来源 珠江三角洲 |
| 收稿时间： | 2012/11/5 0:00:00 |
| 修稿时间： | 2013/1/25 0:00:00 |
Characterization of particulate pollution during Asian Games in Pearl River Delta (PRD) region |
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| HU Wei,HU Min,TANG Qian,GUO Song and YAN Caiqing.Characterization of particulate pollution during Asian Games in Pearl River Delta (PRD) region[J].Acta Scientiae Circumstantiae,2013,33(7):1815-1823. |
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| Authors: | HU Wei HU Min TANG Qian GUO Song and YAN Caiqing |
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| Institution: | State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing 100871;State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing 100871;State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing 100871;State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing 100871;State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing 100871 |
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| Abstract: | |
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| Keywords: | PM2 5 chemical composition secondary formation sources Pearl River Delta region |
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