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首页> 外文期刊>Journal of Environmental Science and Health >Characterization of PM10 samples from Vanderbijlpark in South Africa
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Characterization of PM10 samples from Vanderbijlpark in South Africa

机译：南非范德比尔公园PM10样品的表征

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摘要

In this study, mass concentrations and physico-chemical characteristics of suspended particulates of aerodynamic size 10 μm (PM10) were evaluated. A dual E-Sampler which combines the light scatter and the gravimetric filter methods was used. Sampling occurred between August and December 2009. Scanning Electron Microscope - Energy Dispersive Spectrometry (SEM-EDS) and Inductively Coupled Plasma 6000 were used for elemental and physical characterization. The highest daily average mass concentration measured was 0.03543 mg/㎥ and was below the international and national daily limit of 0.150 mg/㎥, as well as the strict Vaal Triangle regional standard of 0.075 μg/㎥. Relatively high daily average mass concentrations were obtained during the winter period. Concentrations of evaluated heavy metals decreased in the following order: iron (Fe) ＞manganese (Mn) ＞ zinc (Zn)＞copper (Cu)＞vanadium (V) ＞titanium (Ti)＞nickel (Ni)＞lead (Pb). Positive correlations were established between Zn and Pb (r = 0.916); Zn and Mn (r = 0.883); Zn and V (0.984); Zn and Ni (r = 0.877); Zn and Fe (r = 0.914), which suggests common sources. However, Zn and Ti (r = 0.522); Zn and Cu (0.781) were poorly correlated.
机译：在这项研究中，评估了空气动力学尺寸为10μm（PM10）的悬浮颗粒的质量浓度和理化特性。使用了结合了光散射和重量过滤法的双重电子采样器。采样发生在2009年8月至12月之间。使用扫描电子显微镜-能量色散光谱（SEM-EDS）和电感耦合等离子体6000进行元素和物理表征。测得的最高每日平均质量浓度为0.03543 mg / l，低于国际和国家的每日极限0.150 mg / l，以及严格的Vaal Triangle区域标准0.075μg/ l。在冬季期间获得相对较高的每日平均质量浓度。重金属的含量按以下顺序降低：铁（Fe）＞锰（Mn）＞锌（Zn）＞铜（Cu）＞钒（V）​​＞钛（Ti）＞镍（Ni）＞铅（Pb） 。锌和铅之间建立正相关（r = 0.916）；锌和锰（r = 0.883）;锌和钒（0.984）;锌和镍（r = 0.877）;锌和铁（r = 0.914），表明是常见的来源。但是，锌和钛（r = 0.522）；锌和铜（0.781）的相关性很差。

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