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| 2009年春季成都城区碳气溶胶污染特征及其来源初探 | |
| 引用本文： | 陶俊,柴发合,朱李华,高健,曹军骥,王启元,罗磊.2009年春季成都城区碳气溶胶污染特征及其来源初探[J].环境科学学报,2011,31(12):2756-2761. |
| 作者姓名： | 陶俊 柴发合 朱李华 高健 曹军骥 王启元 罗磊 |
| 作者单位： | 1. 环境保护部华南环境科学研究所,广州,510655 2. 中国环境科学研究院,北京,100012 3. 中国科学院地球环境研究所,西安,710075 4. 中国气象局成都高原气象研究所,成都,610071 |
| 摘 要： | 于2009年4月19日至5月17日在成都城区每天采集PM2.5样品,然后对样品进行8种碳组分、水溶性有机碳、左旋葡聚糖及水溶性离子分析,初步探讨了碳气溶胶的来源.结果发现：成都春季PM2.5日均值质量浓度为（133.2±55.5）μg·m^-3,TC、OC、EC和WSOC质量浓度分别为（26.4±7.2）,（20.7±... |
| 关 键 词： | 碳气溶胶 左旋葡聚糖 生物质燃烧 |
| 收稿时间： | 3/3/2011 11:31:51 PM |
| 修稿时间： | 6/13/2011 2:27:27 PM |
Characteristics and sources of carbonaceous aerosol in the urban Chengdu during spring of 2009 |
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| TAO Jun,CHAI Fahe,ZHU Lihu,GAO Jian,CAO Junji,WANG Qiyuan and LUO Lei.Characteristics and sources of carbonaceous aerosol in the urban Chengdu during spring of 2009[J].Acta Scientiae Circumstantiae,2011,31(12):2756-2761. | |
| Authors: | TAO Jun CHAI Fahe ZHU Lihu GAO Jian CAO Junji WANG Qiyuan and LUO Lei |
| Institution: | South China Institute of Environmental Sciences, MEP, Guangzhou 510655,Chinese Research Academy of Environmental Sciences, Beijing 100012,South China Institute of Environmental Sciences, MEP, Guangzhou 510655,Chinese Research Academy of Environmental Sciences, Beijing 100012,Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710075,Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710075 and Institute of Plateau Meteorology, China Meteorological Administration, Chengdu 610071 |
| Abstract: | Aerosol samples for PM2.5 were collected from 19 April to 17 May in 2009 in Chengdu. The concentrations of eight carbon fractions, water-soluble organic carbon (WSOC), levoglucosan and water-solubility ions of all particle samples were obtained by chemical analyses. The characteristics and sources of carbonaceous aerosols are investigated. The results showed that the average mass concentration of PM2.5 was (133.2±55.5) µg•m-3. The average value of total carbon (TC), Organic carbon (OC), Elemental carbon (EC) and WSOC were (26.4±7.2), (20.7±6.0), (5.7±1.8) and (10.4±3.4) µg•m-3, respectively. The averaged levoglucosan concentration was (396.5±405.3) ng•m-3 with maximum of 1820.9ng•m-3.Factor analysis indicated that OC2, OC3, OC4 and WSOC came mainly from biomass burning, while EC1 came from coal combustion and EC2 and EC3 came from vehicle exhaust. Calculation by LC/OC ratio of biomass burning emission factor in China showed that the contribution rate of biomass burning to OC and TC was 46.0% and 36.6 %, respectively. |
| Keywords: | carbonaceous aerosol levoglucosan biomass burning |
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