摘要
基于冷原子荧光测定方法对贵州盘县新鲜煤矸石、不同风化程度的煤矸石中汞分布特征进行了研究。新鲜煤矸石中汞平均含量为0.137±0.076μg/g,没有表现异常富集。不同风化程度的煤矸石土壤汞含量没有明显的变化规律,平均含量为0.154±0.056μg/g,略高于土壤背景值。但在自燃过的煤矸石风化土壤中汞却表现为异常富集,其含量高达1.980μg/g,为当地背景土壤汞浓度的22倍。
Mercury distributions in original and weathering＇oal mine spoils in Panxian, Guizhou Province were investigated based on cold vapor atomic fluorescence deteetion. The results show total rnereury levels in original coal mine spoils were 0. 137 ±0. 076 μg/g, without significant richment in coal mine spoils. Total mercury levels in coal mine spoils with different weathering time were 0. 154 ± 0.056 μg/g, without distributions trends with different weathering time. And these values were a little higher than the background value of mercury in the soils. The mercury in soils from weathered coal mine spoils with spontaneous combustion, however, show significant enriehmnent in the soils. The mercury concentrations in these soils were up to 1. 980 μg/g, and is 22 times higher than the background value of mercury in the soils.
出处
《贵州大学学报（自然科学版）》
2009年第1期131-133,共3页
Journal of Guizhou University:Natural Sciences
基金
贵州省科学技术基金(黔科合J字[2008]2234号)
关键词
汞
煤矸石
自燃
贵州
mercury
coal mine spoils
spontaneous combustion
Guizhou
