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首页> 外文期刊>Environmental Science & Technology >Using Polyurethane Foam-Based Passive Air Sampling Technique to Monitor Monosaccharides at a Regional Scale
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Using Polyurethane Foam-Based Passive Air Sampling Technique to Monitor Monosaccharides at a Regional Scale

机译：使用基于聚氨酯泡沫的被动空气采样技术来监测区域规模的单糖

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摘要

Monosaccharides are important tracers of pollution aerosol from biomass burning. Air sampling of monosaccharides is often conducted using active samplers. However, applicability of sampling monosaccharides using polyurethane foam passive air samplers (PUF-PASs) has not been investigated, since passive air samplers are often applied to monitor semivolatile organic contaminants in large scale and remote area. Our study successfully collected atmospheric monosaccharides using PUF-PASs, providing a valuable tool for monosaccharides sampling. PUF-PAS sampling rates for individual monosaccharides were calibrated using an active sampler for 92 days, and were 1.1, 1.5, and 1.1 m(3)/d for levoglucosan, mannosan, and galactosan, respectively. Degradation of monosaccharides in PUF-PAS was demonstrated to be negligible by spike test of C-13-labeled levoglucosan. Furthermore, passive sampling was carried out at 11 sites in the Pearl River Delta of Southern China from January to April and July to September of 2015. Monosaccharide concentrations derived from PUF-PASs were comparable with the reported data obtained by active sampling, demonstrating that the PUF-PAS approach is valid for monosaccharides monitoring. On the basis of our approach, we found that there is a clear correlation between the monosaccharide concentrations and the MODIS fire activities during January-April.
机译：单糖是生物质燃烧过程中污染气溶胶的重要示踪剂。单糖的空气采样通常使用有源采样器进行。但是，尚未研究使用聚氨酯泡沫被动空气采样器（PUF-PAS）采样单糖的适用性，因为被动空气采样器通常用于监视大规模和偏远地区的半挥发性有机污染物。我们的研究成功地使用PUF-PASs收集了大气单糖，为单糖采样提供了有价值的工具。使用活动采样器对单个单糖的PUF-PAS采样率进行了92天的校准，左旋葡聚糖，甘露聚糖和半乳糖聚糖分别为1.1、1.5和1.1 m（3）/ d。通过C-13标记的左旋葡聚糖的加标测试证明PUF-PAS中单糖的降解可忽略不计。此外，2015年1月至4月以及7月至9月，在华南珠江三角洲的11个地点进行了被动采样。PUF-PAS衍生的单糖浓度与主动采样获得的报告数据相当，表明PUF-PAS方法对于单糖监测有效。根据我们的方法，我们发现一月至四月期间单糖浓度与MODIS火灾活动之间存在明显的相关性。

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  • 来源
    《Environmental Science & Technology》 |2018年第21期|12546-12555|共10页
  • 作者

    Jiang Haoyu; Zhong Guangcai; Wang Jiaqi; Jiang Hongxing; Tian Chongguo; Li Jun; Zhao Shizhen; Yu Zhiqiang; Morawska Lidia; Zhang Gan;

  • 作者单位

    Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Guangdong, Peoples R China;

    Queensland Univ Technol, Inst Future Environm, Int Lab Air Qual & Hlth, Brisbane, Qld 4001, Australia;

    Univ Chinese Acad Sci, Beijing 100049, Peoples R China;

    Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
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