Positive sampling artifacts of organic carbon fractions for fine particles and nanoparticles in a tunnel environment | |
Zhu, CS (Zhu, Chong-Shu)[1,2]; Tsai, CJ (Tsai, Chuen-Jinn)[1]; Chen, SC (Chen, Sheng-Chieh)[1]; Cao, JJ (Cao, Jun-Ji)[2,3]; Roam, GD (Roam, Gwo-Dong)[4] | |
2012-07-31 | |
发表期刊 | ATMOSPHERIC ENVIRONMENT |
卷号 | 54页码:225-230 |
文章类型 | 期刊论文 |
摘要 | The positive artifacts in particulate organic carbon fractions for fine particles (PM2.5) and nanoparticles (PM0.1) were characterized in a tunnel environment by using the QBQ (a quartz filter behind a quartz filter) method. The OC concentrations of the backup quartz filters ranged from 3.56 to 11.38 mu g m(-3) with the average of 6.70 mu g m(-3) for PM2.5, and from 2.62 to 7.27 mu g m(-3) With the average of 4.64 mu g m(-3) for PM0.1. The most abundant species on the backup quartz filters was OC1 for both PM2.5 and PM0.1, accounting for 56.9% and 41.1% of the measured organic carbon, respectively. Most of EC fractions (EC1-EC3) on the backup filters for PM2.5 and PM0.1 were below the minimum detection limit. Therefore, only OC contributed to positive artifacts distinctly with the average percentage of 21.7% and 48.0% for PM2.5 and PM0.1, respectively. The artifacts for four organic carbon fractions ranged from 36.1% (OC1) to 4.4% (OC4) for PM2.5 and from 68.0% (OC1) to 31.9% (OC4) for PM0.1]. The uncorrected OC/EC ratios on the front quartz filters were higher by as much as 30% and 107% for PM2.5 and PM0.1 than those corrected for positive organic artifacts, respectively. That is, much higher percentage of positive artifacts was found for PM0.1 DC fractions on the front filters. The comparison of the present and previous studies shows that OC positive artifacts vary widely among various PM fractions and sampling sites attributing to many factors that are worth investigating in the future. |
关键词 | Positive Artifacts Organic Carbon Pm2.5 Pm0.1 Tunnel |
DOI | 10.1016/j.atmosenv.2012.02.060 |
收录类别 | SCI ; EI |
语种 | 英语 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ieecas.cn/handle/361006/10182 |
专题 | 粉尘与环境研究室 |
通讯作者 | Tsai, CJ (Tsai, Chuen-Jinn)[1] |
作者单位 | 1.Institute of Environmental Engineering, National Chiao Tung University, Hsinchu, Taiwan; 2.SKLLQG, Institute of Earth Environment, Chinese Academy of Sciences, Xi’an, China; 3.Institute of Global Environmental Change, Xi’an Jiaotong University, Xi’an, China; 4.Environmental Analysis Laboratory, Environmental Protection Administration, Jhongli 320, Taiwan |
推荐引用方式 GB/T 7714 | Zhu, CS ,Tsai, CJ ,Chen, SC ,et al. Positive sampling artifacts of organic carbon fractions for fine particles and nanoparticles in a tunnel environment[J]. ATMOSPHERIC ENVIRONMENT,2012,54:225-230. |
APA | Zhu, CS ,Tsai, CJ ,Chen, SC ,Cao, JJ ,&Roam, GD .(2012).Positive sampling artifacts of organic carbon fractions for fine particles and nanoparticles in a tunnel environment.ATMOSPHERIC ENVIRONMENT,54,225-230. |
MLA | Zhu, CS ,et al."Positive sampling artifacts of organic carbon fractions for fine particles and nanoparticles in a tunnel environment".ATMOSPHERIC ENVIRONMENT 54(2012):225-230. |
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Positive sampling ar(322KB) | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | 请求全文 |
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