|
|||||
|
|
| 广州市灰霾期间大气颗粒物中有机碳和元素碳的粒径分布 | |
| 引用本文： | 谭吉华,段菁春,赵金平,毕新慧,盛国英,傅家谟,贺克斌.广州市灰霾期间大气颗粒物中有机碳和元素碳的粒径分布[J].环境化学,2009,28(2). |
| 作者姓名： | 谭吉华 段菁春 赵金平 毕新慧 盛国英 傅家谟 贺克斌 |
| 作者单位： | 1. 中国科学院广州地球化学研究所,有机地球化学国家重点实验室,广州,510640;清华大学环境科学与工程系,北京,100084 2. 中国科学院广州地球化学研究所,有机地球化学国家重点实验室,广州,510640;清华大学环境科学与工程系,北京,100084;中国环境科学研究院,北京,100012 3. 中国科学院广州地球化学研究所,有机地球化学国家重点实验室,广州,510640 4. 清华大学环境科学与工程系,北京,100084 |
| 基金项目： | 有机地球化学国家重点实验室基金，面上基金 |
| 摘 要： | 使用冲击式采样器(MOUDI)采集广州市灰霾形成过程的大气颗粒物.分析了有机碳(OC)和元素碳(EC).结果表明,灰霾期间大气主要消光部分积聚态颗粒物及其中的OC和EC,在PM10(可吸入颗粒物)中所占的比例及其绝对浓度要远高于正常天气.正常天气OC和EC呈双模态分布,严重灰霾天气EC的粒径分布呈单一模态分布,OC的粒径分布呈双模态分布,峰值都向大粒径方向偏移.结果显示,大气颗粒物、OC和EC在积聚态的大幅度增长是形成灰霾天气的重要原因. |
| 关 键 词： | 气溶胶 灰霾 有机碳 元素碳 |
THE SIZE DISTRIBUTION OF ORGANIC CARBON AND ELEMENTAL CARBON DURING HAZE PERIOD IN GUANGZHOU |
|
| TAN Ji-hua,DUAN Jing-chun,ZHAO Jin-ping,BI Xin-hui,SHENG Guo-ying,FU Jia-mo,HE Ke-bin.THE SIZE DISTRIBUTION OF ORGANIC CARBON AND ELEMENTAL CARBON DURING HAZE PERIOD IN GUANGZHOU[J].Environmental Chemistry,2009,28(2). | |
| Authors: | TAN Ji-hua DUAN Jing-chun ZHAO Jin-ping BI Xin-hui SHENG Guo-ying FU Jia-mo HE Ke-bin |
| Institution: | 1State Key Laboratory of Organic Geochemistry;Chinese Academy of Sciences;Guangzhou;510640;China;2Department of Environment Science and Engineering;Tsinghua University;Beijing;100084;3Chinese Research Academy of Environmental Sciences;100012;China |
| Abstract: | Airborne particles had been collected during a haze episode(21-Dec 2005 to 26-Dec 2005).Organic carbon(OC) and elemental carbon(EC) were characterized by Sunset carbon analyzer.In this study,the proportion of accumulation mode particles,OC and EC in haze days were higher than those in normal days.OC was bimodal distribution during both normal and heavy haze period;however,EC was bimodal during normal period and monomodal during heavy haze period.Accumulation modal of both OC and EC tended to shift toward la... |
| Keywords: | aerosol haze organic carbon elemental carbon |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |