薪柴燃烧溶解性棕色碳排放特征及光学性质
Emission characteristics and optical properties of extractable brown carbon from residential wood combustion
查看参考文献43篇
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文摘
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对农村薪柴(杨木和毛竹)燃烧排放的4类溶解性棕色碳(BrC)组分,包括水溶性有机物(WSOM)、水溶性类腐殖质(HULIS_(WS))、碱溶性有机物(ASOM)和碱溶性类腐殖质(HULIS_(AS))的组成特征和光学性质进行了初步研究.结果显示,薪柴燃烧排放出大量的BrC,其中BrC_T (WSOM + ASOM)占烟气PM_(2.5)质量的46%~56%,排放因子为(7.5~16) g/kg.HULIS是薪柴燃烧排放BrC的重要组分,占BrC_T的44%~46%.4类BrC的特征吸收指数(SUVA_(254))、光吸收效率(MAE_(365))和Angstrom指数(AAE)值分别为1.9~4.0m~2/g、0.4~2.1m~2/g和6.2~11.1,说明薪柴燃烧排放BrC具有较高的芳香度、较强的光吸收能力且其光吸收具有较强的波长依赖性.三维荧光光谱分析结果显示,薪柴燃烧排放BrC主要以类蛋白荧光物质组成为主,这与雨水和大气气溶胶中水溶性BrC以类腐殖质荧光物质组成为主的特征存在显著差异.相关性分析结果显示,BrC的MAE_(365)与HIX和SUVA_(254)呈现显著的正相关性,与E_2/E_3、FI、BIX和β:α呈现显著的负相关性,说明薪柴燃烧排放BrC的光吸收特性与其芳香性、腐殖化程度、自生源贡献和新鲜度等紧密相关.本研究结果有助于进一步认识生物质燃烧BrC的排放特征,为探索大气BrC的来源和环境效应提供数据基础和科学依据. |
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其他语种文摘
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The study was aimed to investigate the emission characteristics and optical properties of primary brown carbon (BrC),including water-soluble organic matters (WSOM),water-soluble humic like substances (HULIS_(WS)),alkaline-soluble organic matters(ASOM),alkaline-soluble HULIS (HULIS_(AS)),emitted from household residential wood combustion.The results showed that residential wood combustion emitted large amounts of BrC.Among them,BrC_T (WSOM + ASOM) were observed to make up 46%~56% of total smoke PM_(2.5) mass,and the emission factors of them were 7.5~16g/kg.HULIS were important light absorber in primary BrC,which accounted for 44%~46% of BrC_T.The SUVA_(254),MAE_(365) and AAE values for primary BrC were 1.9~4.0m~2/g,0.4~2.1m~2/g and 6.2~11.1,respectively,indicating that the primary BrC emitted from wood combustion exhibited high aromaticity,strong light absorbing capacity and its light absorption presented strong wavelength dependence.3DEEM results showed that the protein-like substances were dominant fluorophores for primary BrC fractions.It was significantly different from the fluorescent characteristics for WSOM in rainwater and atmospheric aerosols,in which the humic-like substances were predominant fluorophores.The correlation analysis revealed that MAE_(365) present strong positive correlations with HIX and SUVA_(254),while strong negative correlations were found with E_2/E_3,FI,BIX and β:α.It implied that the light absorption of primary BrC emitted from residential wood combustion were greatly related to their aromaticity,humification degree,autochthonous and freshness characteristics.The results obtained in this study are helpful to better understand the emission characteristics of BrC from BB,and also can provide such deep insight into the sources and environment effects of atmospheric BrC. |
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来源
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中国环境科学
,2019,39(8):3215-3224 【核心库】
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关键词
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薪柴燃烧
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棕色碳
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排放特征
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光吸收特性
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荧光光谱特性
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地址
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1.
安徽科技学院资源与环境学院, 安徽, 凤阳, 233100
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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, 广东, 广州, 510640
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中国科学院大学, 北京, 100049
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1000-6923 |
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学科
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环境污染及其防治 |
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基金
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国家自然科学基金资助项目
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安徽省科技重大专项
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安徽省教育厅重点项目
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安徽省自然科学基金
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文献收藏号
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CSCD:6557644
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参考文献 共
43
共3页
|
|
1.
闫才青. 大气棕色碳的研究进展与方向.
环境科学,2014,35(11):4404-4414
|
被引
26
次
|
|
|
|
|
2.
支国瑞. 棕色碳气溶胶来源、性质、测量与排放估算.
环境科学研究,2015,28(12):1797-1814
|
被引
8
次
|
|
|
|
|
3.
Andreae M O. Black carbon or brown carbon? The nature of light-absorbing carbonaceous aerosols.
Atmospheric Chemistry and Physics,2006,6:3131-3148
|
被引
72
次
|
|
|
|
|
4.
Liu J. Size-resolved measurements of brown carbon in water and methanol extracts and estimates of their contribution to ambient fine-particle light absorption.
Atmospheric Chemistry and Physics,2013,13(24):12389-12404
|
被引
16
次
|
|
|
|
|
5.
Yan C. Chemical characteristics and light-absorbing property of water-soluble organic carbon in Beijing: Biomass burning contributions.
Atmospheric Environment,2015,121:4-12
|
被引
5
次
|
|
|
|
|
6.
Hecobian A. Water-Soluble Organic Aerosol material and the light-absorption characteristics of aqueous extracts measured over the Southeastern United States.
Atmospheric Chemistry and Physics,2010,10(13):5965-5977
|
被引
38
次
|
|
|
|
|
7.
Du Z. A yearlong study of water-soluble organic carbon in Beijing II: Light absorption properties.
Atmospheric Environment,2014,89:235-241
|
被引
9
次
|
|
|
|
|
8.
段菁春. 广州灰霾期大气颗粒物中多环芳烃粒径的分布.
中国环境科学,2006,26(1):6-10
|
被引
50
次
|
|
|
|
|
9.
崔杰. 基于在线观测的大气PM_(2.5)中棕色碳吸光贡献估算.
中国环境科学,2017,37(2):401-406
|
被引
5
次
|
|
|
|
|
10.
Feng Y. Brown carbon: a significant atmospheric absorber of solar radiation?.
Atmospheric Chemistry and Physics,2013,13(17):8607-8621
|
被引
36
次
|
|
|
|
|
11.
Laskin A. Chemistry of Atmospheric Brown Carbon.
Chemical Reviews,2015,115(10):4335-4382
|
被引
60
次
|
|
|
|
|
12.
Chen Y. Light absorption by organic carbon from wood combustion.
Atmospheric Chemistry and Physics,2010,10(4):1773-1787
|
被引
25
次
|
|
|
|
|
13.
Fan X. Comprehensive characterization of humic-like substances in smoke PM_(2.5) emitted from the combustion of biomass materials and fossil fuels.
Atmospheric Chemistry and Physics,2016,16(20):13321-13340
|
被引
7
次
|
|
|
|
|
14.
Cheng Y. Mass absorption efficiency of elemental carbon and water-soluble organic carbon in Beijing, China.
Atmospheric Chemistry and Physics,2011,11(22):11497-11510
|
被引
28
次
|
|
|
|
|
15.
Kirillova E N. Sources and light absorption of water-soluble organic carbon aerosols in the outflow from northern China.
Atmospheric Chemistry and Physics,2014,14(3):1413-1422
|
被引
20
次
|
|
|
|
|
16.
梁俭. 夏、 冬季降雨中溶解性有机质(DOM)光谱特征及来源辨析.
环境科学,2015,36(3):888-897
|
被引
22
次
|
|
|
|
|
17.
孙建中. 居民生活用煤和生物质棕色碳排放因子研究.
环境科学与技术,2016,39(S1):338-345
|
被引
2
次
|
|
|
|
|
18.
蔡竟. 中国秸杆焚烧及民用燃煤棕色碳排放的初步研究.
环境科学研究,2014,27(5):455-461
|
被引
11
次
|
|
|
|
|
19.
Fan X. Optical properties and oxidative potential of water-and alkaline-soluble brown carbon in smoke particles emitted from laboratory simulated biomass burning.
Atmospheric Environment,2018,194:48-57
|
被引
2
次
|
|
|
|
|
20.
Park S S. Chemical and light absorption properties of humic-like substances from biomass burning emissions under controlled combustion experiments.
Atmospheric Environment,2016,136:114-122
|
被引
9
次
|
|
|
|
|
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