| Effects of temperature parameters on thermal-optical analysis of organic and elemental carbon in aerosol | |
| Zhi, Guorui2; Chen, Yingjun1; Sheng, Guoying2,3; Fu, Jiamo2,3 | |
| 发表期刊 | ENVIRONMENTAL MONITORING AND ASSESSMENT
 |
| ISSN | 0167-6369 |
| 2009-07-01 | |
| 卷号 | 154期号:1-4页码:253-261 |
| 关键词 | Thermal-optical Analysis Temperature Elemental Carbon Organic Carbon |
| 产权排序 | Chinese Acad Sci, Yantai Inst Coastal Zone Res Sustainable Dev;Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem;Shanghai Univ, Sch Environm & Chem Engn, Inst Environm Pollut & Hlth |
| 通讯作者 | Chen, YJ, Chinese Acad Sci, Yantai Inst Coastal Zone Res Sustainable Dev, Yantai, Shandong, Peoples R China |
| 作者部门 | 污染过程与控制实验室 |
| 英文摘要 | Thermal-optical analysis (TOA) is a popular method to determine aerosol elemental carbon (EC) and organic carbon (OC) collected on quartz fiber filter. However, temperature protocol adopted in TOA has great effects on OC and EC results. The purpose of this study is to investigate and quantify the effects of maximum temperature (T (max) ) and residence time (RT) for each step in helium stage on ECOC measurements. Fourteen typical source samples and 20 ambient samples were collected and six temperature programs were designed for this study. It was found that EC value decreases regularly as T (max) ascends, i.e., EC results from T (max) of 650A degrees C, 750A degrees C and 850A degrees C are 0.89 +/- 0.06, 0.76 +/- 0.10, 0.62 +/- 0.13 times EC value from T (max) of 550A degrees C, respectively, and the magnitude of EC drop (EC (d) , percent) is significantly correlated with OC abundance in total carbon (R (OC/TC) ), expressed as EC (d) = 66.8R (OC/TC) - 14.4 (r = 0.87); pyrolized OC (POC) values are also sensitive to T (max) , but there are various trends for samples with different OC constituents. On average of the samples studied here, prolonged RT reduces EC values by only 3%, almost negligible compared to the effect of T (max) , and reduces POC by 9%, much less than that by previous report. |
| 文章类型 | Article |
| 资助机构 | Chinese National Natural Science Foundation [40605033, 40590392] |
| 收录类别 | SCI |
| 语种 | 英语 |
| 关键词[WOS] | PARTICULATE MATTER ; ATMOSPHERIC PARTICLES ; SOURCE APPORTIONMENT ; UNITED-STATES ; BLACK CARBON ; CHINA ; REFLECTANCE ; COMBUSTION ; TRACERS ; EXHAUST |
| 研究领域[WOS] | Environmental Sciences & Ecology |
| WOS记录号 | WOS:000267824400022 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.yic.ac.cn/handle/133337/3530 |
| 专题 | 中国科学院海岸带环境过程与生态修复重点实验室_污染过程与控制实验室 |
| 作者单位 | 1.Chinese Acad Sci, Yantai Inst Coastal Zone Res Sustainable Dev, Yantai, Shandong, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou, Guangdong, Peoples R China 3.Shanghai Univ, Sch Environm & Chem Engn, Inst Environm Pollut & Hlth, Shanghai, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhi, Guorui,Chen, Yingjun,Sheng, Guoying,et al. Effects of temperature parameters on thermal-optical analysis of organic and elemental carbon in aerosol[J]. ENVIRONMENTAL MONITORING AND ASSESSMENT,2009,154(1-4):253-261. |
| APA | Zhi, Guorui,Chen, Yingjun,Sheng, Guoying,&Fu, Jiamo.(2009).Effects of temperature parameters on thermal-optical analysis of organic and elemental carbon in aerosol.ENVIRONMENTAL MONITORING AND ASSESSMENT,154(1-4),253-261. |
| MLA | Zhi, Guorui,et al."Effects of temperature parameters on thermal-optical analysis of organic and elemental carbon in aerosol".ENVIRONMENTAL MONITORING AND ASSESSMENT 154.1-4(2009):253-261. |
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