Department of Chemistry and Biochemistry, University of Mississippi, University, MS 38677, USA.
Bull Environ Contam Toxicol. 2011 Apr;86(4):419-22. doi: 10.1007/s00128-011-0206-2. Epub 2011 Feb 3.
Gaseous elemental mercury (GEM) concentrations were determined within an academic chemistry building by cold vapor atomic fluorescence spectrometry. Concentrations varied depending on the room activity, with night time and weekend levels the lowest and most stable (typically between 10 and 20 ng/m(3)), and daytime weekday levels the highest (averaging about 3-5 times higher). Laboratory air exhibited daytime concentration spikes as high as 1,600 ng/m(3). Office levels were similar to weekend laboratory concentrations, suggesting a general building-wide mercury background. However, concentration spikes suggest GEM levels may be exacerbated by foot traffic which may cause motion-induced wafting from higher concentration areas. Based on current regulations the GEM levels do not present a health hazard.
采用冷原子荧光光谱法测定了某高校化学楼内气态元素汞（GEM）的浓度。浓度取决于房间活动情况，夜间和周末的浓度最低且最稳定（通常在 10 至 20ng/m(3)之间），而工作日白天的浓度最高（平均约为 3-5 倍）。实验室空气中的汞浓度白天峰值高达 1600ng/m(3)。办公室的浓度与周末实验室的浓度相似，表明整个建筑物都有汞背景。然而，浓度峰值表明，汞浓度可能因行人交通而加剧，行人交通可能导致高浓度区域的运动诱导吹扬。根据现行法规，GEM 水平不会对健康造成危害。
