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| 福建省三大城市冬季PM2.5中有机碳和元素碳的污染特征 | |
| 引用本文： | 陈衍婷,陈进生,胡恭任,徐玲玲,尹丽倩,张福旺.福建省三大城市冬季PM2.5中有机碳和元素碳的污染特征[J].环境科学,2013,34(5):1988-1994. |
| 作者姓名： | 陈衍婷 陈进生 胡恭任 徐玲玲 尹丽倩 张福旺 |
| 作者单位： | 1. 华侨大学化工学院环境科学与工程系,厦门 361021;中国科学院城市环境研究所城市环境与健康重点实验室,厦门361021 2. 中国科学院城市环境研究所城市环境与健康重点实验室,厦门,361021 3. 华侨大学化工学院环境科学与工程系,厦门,361021 |
| 基金项目： | 环境保护公益性行业科研专项(201009004); 中国科学院知识创新工程重要方向项目(KZCX2-YW-453) |
| 摘 要： | 以福建省福州、厦门和泉州这3个主要城市为研究对象,采集了冬季PM2.5样品,采用热光透射法(thermal opticaltransmission,TOT)分析得到PM2.5、OC和EC的浓度水平和空间分布、OC与EC的相关性、OC/EC值以及二次有机碳分布特征.结果表明,福州、厦门和泉州冬季PM2.5的浓度范围为(79.94±18.08)～(114.78±26.10)μg.m-3,均超过《环境空气质量标准》(GB 3095-2012)规定的PM2.5日均值75μg.m-3.OC和EC的浓度范围(以C计)分别为(14.77±2.65)～(19.27±1.96)μg.m-3和(1.99±0.50)～(3.36±0.41)μg.m-3,分别是背景点福州平潭的1.2～1.6倍和1.2～2.0倍.福州平潭(R2=0.70)和晋安(R2=0.66)冬季PM2.5中OC与EC的相关性显著,说明OC和EC有相近的一次污染来源.OC/EC值为5.64～7.71,且值均大于2.0,说明各采样点存在二次有机碳(secondary organic carbon,SOC)的生成.SOC的浓度为2.47～7.17μg.m-3,占OC的比例为13.08%～45.67%,占PM2.5的2.20%～7.78%. |
| 关 键 词： | PM2.5 有机碳 元素碳 热光投射法 福建省三大城市 |
| 收稿时间： | 2012/7/11 0:00:00 |
| 修稿时间： | 2012/11/7 0:00:00 |
Characterization of Organic Carbon (OC) and Elemental Carbon (EC) in PM2.5 During the Winter in Three Major Cities in Fujian Province, China |
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| CHEN Yan-ting,CHEN Jin-sheng,HU Gong-ren,XU Ling-ling,YIN Li-qian and ZHANG Fu-wang.Characterization of Organic Carbon (OC) and Elemental Carbon (EC) in PM2.5 During the Winter in Three Major Cities in Fujian Province, China[J].Chinese Journal of Environmental Science,2013,34(5):1988-1994. | |
| Authors: | CHEN Yan-ting CHEN Jin-sheng HU Gong-ren XU Ling-ling YIN Li-qian and ZHANG Fu-wang |
| Institution: | Environmental Science and Engineering Department, College of Chemical Engineering, Huaqiao University, Xiamen 361021, China;Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China;Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China;Environmental Science and Engineering Department, College of Chemical Engineering, Huaqiao University, Xiamen 361021, China;Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China;Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China;Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China |
| Abstract: | |
| Keywords: | PM2 5 organic carbon (OC) elemental carbon (EC) thermal optical transmission (TOT) three major cities in Fujian Province |
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