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首页> 外文期刊>Nuclear Instruments & Methods in Physics Research. B, Beam Interactions with Materials and Atoms >Exposure to mineral sands dust particles
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Exposure to mineral sands dust particles

机译：暴露于矿物砂尘颗粒中

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The aim of this study is to characterize the airborne particles in a Brazilian region with high concentration of mineral sands (Buena village). In this study proton induced X-ray emission (PIXE), plasma desorption mass spectrometry and alpha spectrometry were used for analyses of airborne particles. The analyses of aerosol samples and lichen samples show that the inhabitants of the Buena village are exposed to airborne particles in the fine fraction of aerosols. The main anthropogenic sources of particles are the mineral sands processing plant and truck traffic, and natural sources as the sea, soil and the swamp. The results from the lichen samples show that at least during the last 15 years the inhabitants of the village have been exposed to monazite particles. The results from aerosols and lichens samples also suggested that the swamp is a source of ~(226)Ra and ~(210)Pb bearing particles besides the monazite dust.
机译：这项研究的目的是表征巴西矿砂含量高的地区（布埃纳村）中的空气传播颗粒。在这项研究中，质子诱导的X射线发射（PIXE），等离子体解吸质谱法和α光谱法用于分析空气中的颗粒。对气溶胶样品和地衣样品的分析表明，布埃纳村的居民暴露于细小颗粒的气溶胶中。人为颗粒的主要来源是矿物砂加工厂和卡车运输，以及海洋，土壤和沼泽等自然来源。地衣样本的结果表明，至少在过去15年中，该村庄的居民暴露于独居石颗粒之下。气溶胶和地衣样品的结果还表明，除了独居石粉尘外，沼泽还是〜（226）Ra和〜（210）Pb颗粒的来源。

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