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Rapid Monitoring of Mercury in Air from an Organic Chemical Factory in China Using a Portable Mercury Analyzer

机译:使用便携式汞分析仪对中国有机化工厂中空气中的汞进行快速监测

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摘要

A chemical factory, using a production technology of acetaldehyde with mercury catalysis, was located southeast of Qingzhen City in Guizhou Province, China. Previous research showed heavy mercury pollution through an extensive downstream area. A current investigation of the mercury distribution in ambient air, soils, and plants suggests that mobile mercury species in soils created elevated mercury concentrations in ambient air and vegetation. Mercury concentrations of up to 600 ng/m3 in air over the contaminated area provided evidence of the mercury transformation to volatile Hg(0). Mercury analysis of soil and plant samples demonstrated that the mercury concentrations in soil with vaporized and plant-absorbable forms were higher in the southern area, which was closer to the factory. Our results suggest that air monitoring using a portable mercury analyzer can be a convenient and useful method for the rapid detection and mapping of mercury pollution in advanced field surveys.
机译:位于中国贵州省清镇市东南的一家化工厂,使用乙醛的汞催化生产技术。先前的研究表明,整个下游地区汞污染严重。目前对周围空气,土壤和植物中汞分布的调查表明,土壤中的可移动汞物种使周围空气和植被中的汞浓度升高。污染区域内空气中的汞浓度高达600 ng / m 3 提供了汞转化为挥发性Hg(0)的证据。对土壤和植物样品的汞分析表明,南部地区的汽化和可吸收形式的土壤中的汞浓度较高,该区域离工厂较近。我们的研究结果表明,使用便携式汞分析仪进行空气监测可能是在高级现场调查中快速检测和绘制汞污染图的便捷方法。

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