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Harmonizing Aerosol Carbon Measurements between Two Conventional Thermal/Optical Analysis Methods
Zhi, Guorui1; Chen, Yingjun3; Sun, Junying1; Chen, Laiguo4; Tian, Wenjuan5; Duan, Jingchun6; Zhang, Gan2; Chai, Fahe6; Sheng, Guoying2; Fu, Jiamo
2011-04-01
发表期刊ENVIRONMENTAL SCIENCE & TECHNOLOGY
ISSN0013-936X
卷号45期号:7页码:2902-2908
产权排序[Zhi, Guorui; Sun, Junying] Chinese Acad Meteorol Sci, Beijing 100081, Peoples R China; [Zhang, Gan; Sheng, Guoying] Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Guangdong, Peoples R China; [Chen, Yingjun] CAS, Yantai Inst Coastal Zone Res Sustainable Dev, Yantai 264003, Shandong, Peoples R China; [Chen, Laiguo] Minist Environm Protect, S China Inst Environm Sci, Guangzhou 510655, Guangdong, Peoples R China; [Tian, Wenjuan] S China Univ Technol, Coll Environm Sci & Engn, Guangzhou 510640, Guangdong, Peoples R China; [Duan, Jingchun; Chai, Fahe] Chinese Res Inst Environm Sci, Beijing 100012, Peoples R China
摘要Although total carbon (TC) can be consistently quantified by various aerosol carbon measurement methods, the demarcation of TC into organic carbon (OC) and elemental carbon (EC) has long been inconsistent. The NIOSH and IMPROVE protocols are most widely used for thermal/optical analysis (TOA), but current knowledge rests in the description that the NIOSH protocol usually gives lower EC values than does the IMPROVE protocol. This study seeks to explore the possibility of quantitatively linking the difference between the two TOA protocols. Residential coal-burning samples that had been collected and analyzed following the NIOSH protocol in previous studies were directly reanalyzed following the IMPROVE protocol for this study. A comparison of each pair of NIOSH and IMPROVE EC values reveals the dynamic relation between the two protocols, which can be expressed as a regression equation, y = (1-x)/(1 + 4.86x(2)) (R-2 = 0.96), where the independent x is the EC/TC ratio (R-EC/TC) for the IMPROVE protocol, and the dependent y is the difference between IMPROVE and NIOSH R-EC/TC relative to IMPROVE R-EC/TC. This regression equation may be the first effort in formulating the relationship between the two TOA protocols, and it is very helpful in harmonizing inconsistent TOA measurements, for example, source characterization, ambient monitoring, and atmospheric modeling.; Although total carbon (TC) can be consistently quantified by various aerosol carbon measurement methods, the demarcation of TC into organic carbon (OC) and elemental carbon (EC) has long been inconsistent. The NIOSH and IMPROVE protocols are most widely used for thermal/optical analysis (TOA), but current knowledge rests in the description that the NIOSH protocol usually gives lower EC values than does the IMPROVE protocol. This study seeks to explore the possibility of quantitatively linking the difference between the two TOA protocols. Residential coal-burning samples that had been collected and analyzed following the NIOSH protocol in previous studies were directly reanalyzed following the IMPROVE protocol for this study. A comparison of each pair of NIOSH and IMPROVE EC values reveals the dynamic relation between the two protocols, which can be expressed as a regression equation, y = (1-x)/(1 + 4.86x(2)) (R-2 = 0.96), where the independent x is the EC/TC ratio (R-EC/TC) for the IMPROVE protocol, and the dependent y is the difference between IMPROVE and NIOSH R-EC/TC relative to IMPROVE R-EC/TC. This regression equation may be the first effort in formulating the relationship between the two TOA protocols, and it is very helpful in harmonizing inconsistent TOA measurements, for example, source characterization, ambient monitoring, and atmospheric modeling.
通讯作者Zhi, GR, Chinese Acad Meteorol Sci, Beijing 100081, Peoples R China.zhigr68@yahoo.com.cn ; yjchen@yic.ac.cn
关键词Secondary Organic Aerosol Thermal-optical Analysis Elemental Carbon Particulate Matter Black Carbon Chemical-composition Source Apportionment Temperature Particles Air
作者部门污染过程与控制实验室 
学科领域Engineering, Environmental ; Environmental Sciences
项目资助者National Natural Science Foundations of China [40605033, 40773047, 40973071]; CAS [KZCX2-YW-Q07-04, KZCX2-YW-QN210, KZCX1-YW-06]; Department of Science and Technology of Shandong Province [2007GG2QT06018]
收录类别SCI
关键词[WOS]SECONDARY ORGANIC AEROSOL ; THERMAL-OPTICAL ANALYSIS ; ELEMENTAL CARBON ; PARTICULATE MATTER ; BLACK CARBON ; CHEMICAL-COMPOSITION ; SOURCE APPORTIONMENT ; TEMPERATURE ; PARTICLES ; AIR
文章类型Article
语种英语
WOS研究方向Engineering ; Environmental Sciences & Ecology
WOS记录号WOS:000288841500059
引用统计
被引频次:12[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.yic.ac.cn/handle/133337/4898
专题污染过程与控制实验室
作者单位1.Chinese Acad Meteorol Sci, Beijing 100081, Peoples R China
2.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Guangdong, Peoples R China
3.Chinese Acad Sci, Yantai Inst Coastal Zone Res Sustainable Dev, Yantai 264003, Shandong, Peoples R China
4.Minist Environm Protect, S China Inst Environm Sci, Guangzhou 510655, Guangdong, Peoples R China
5.S China Univ Technol, Coll Environm Sci & Engn, Guangzhou 510640, Guangdong, Peoples R China
6.Chinese Res Inst Environm Sci, Beijing 100012, Peoples R China
推荐引用方式
GB/T 7714
Zhi, Guorui,Chen, Yingjun,Sun, Junying,et al. Harmonizing Aerosol Carbon Measurements between Two Conventional Thermal/Optical Analysis Methods[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2011,45(7):2902-2908.
APA Zhi, Guorui.,Chen, Yingjun.,Sun, Junying.,Chen, Laiguo.,Tian, Wenjuan.,...&Fu, Jiamo.(2011).Harmonizing Aerosol Carbon Measurements between Two Conventional Thermal/Optical Analysis Methods.ENVIRONMENTAL SCIENCE & TECHNOLOGY,45(7),2902-2908.
MLA Zhi, Guorui,et al."Harmonizing Aerosol Carbon Measurements between Two Conventional Thermal/Optical Analysis Methods".ENVIRONMENTAL SCIENCE & TECHNOLOGY 45.7(2011):2902-2908.
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