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首页> 外文期刊>Environmental Pollution >Using magnetic and chemical measurements to detect atmospherically-derived metal pollution in artificial soils and metal uptake in plants
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Using magnetic and chemical measurements to detect atmospherically-derived metal pollution in artificial soils and metal uptake in plants

机译：使用磁性和化学方法检测人造土壤中大气中的金属污染和植物中的金属吸收

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摘要

Quantification of potential effects of ambient atmospheric pollution on magnetic and chemical proper ties of soils and plants requires precise experimental studies. A controlled growth experiment assessing magnetic and chemical parameters was conducted within (controls) and outside (exposed) a greenhouse setting. Magnetic susceptibility (MS) measurements showed that while initial MS values were similar for the sample sets, the overall MS value of exposed soil was significantly greater than in controls, suggesting an additional input of Fe-containing particles. Scanning electron microscope images of the exposed soils revealed numerous angular magnetic particles and magnetic spherules typical of vehicular exhaust and combustion processes, respectively. Similarly, chemical analysis of plant roots showed that plants grown in the exposed soil had higher concentrations of Fe and heavy (toxic) metals than controls. This evidence suggests that atmospheric deposition contributed to the MS increase in exposed soils and increased metal uptake by plants grown in this soil.
机译：量化环境大气污染对土壤和植物的磁和化学性质的潜在影响，需要进行精确的实验研究。在温室内（对照）和室外（暴露）进行了评估磁性和化学参数的受控生长实验。磁化率（MS）测量表明，虽然样品组的初始MS值相似，但裸露土壤的总体MS值显着大于对照，表明存在额外输入的含铁颗粒。裸露的土壤的扫描电子显微镜图像分别显示了车辆排气和燃烧过程中典型的许多成角度的磁性颗粒和磁性小球。同样，对植物根的化学分析表明，在裸露的土壤中生长的植物比对照中的铁和重（有毒）金属浓度更高。该证据表明，大气沉积导致暴露土壤中MS的增加以及该土壤中生长的植物对金属的吸收增加。

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  • 来源
    《Environmental Pollution》 |2012年第11期|p.131-144|共14页
  • 作者

    B. Sapkota; M.T. Cioppa;

  • 作者单位

    Department of Earth and Environmental Sciences, University of Windsor, Windsor, Ontario N9B 3P4, Canada;

    Department of Earth and Environmental Sciences, University of Windsor, Windsor, Ontario N9B 3P4, Canada;

  • 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);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    atmospheric pollutants; soil pollution; magnetic susceptibility; metal migration; metal uptake;

    机译：大气污染物;土壤污染;磁化率;金属迁移;金属吸收;

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