Wrocław University of Environmental & Life Sciences, Institute of Soil Science & Environmental Protection, Grunwaldzka 53, Wrocław, Poland.
Chemosphere. 2011 Jun;83(11):1507-12. doi: 10.1016/j.chemosphere.2011.01.049. Epub 2011 Feb 26.
The study was aimed to examine total concentrations and pools of Hg in surface layers of soils in the Karkonosze Mountains, dependent on soil properties and site locality. Soil samples were collected from a litter layer and the layers 0-10 cm and 10-20 cm, at 68 sites belonging to the net of a monitoring system, in two separate areas, and in three altitudinal zones: below 900 m, 900-1100 m, and over 1100 m. Air-borne pollution was the major source of mercury in soils. Hg has accumulated mainly in the litter (where its concentrations were the highest), and in the layer 0-10 cm. Hg concentrations in all samples were in the range 0.04-0.97 mg kg(-1), with mean values 0.38, 0.28, and 0.14 mg kg(-1) for litter and the layers 0-10 cm and 10-20 cm, respectively. The highest Hg concentrations in the litter layer were found in the intermediate altitudinal zone, whereas Hg concentrations in the layer 0-10 cm increased with increasing altitude. Soil quality standard for protected areas (0.50 mg kg(-1)) was exceeded in a few sites. The pools of Hg accumulated in soils were in the range: 0.8-84.8 mg m(-2), with a mean value of 16.5 mg m(-2), and they correlated strongly with the pools of stored organic matter.
本研究旨在探讨喀尔巴阡山脉表层土壤中汞的总浓度和总量，以及其与土壤特性和采样点位置的关系。在两个不同的地区和三个海拔带（低于 900 米、900-1100 米和高于 1100 米）的 68 个监测系统网络采样点，采集了枯枝落叶层以及 0-10 厘米和 10-20 厘米土层的土壤样本。空气中的污染是土壤中汞的主要来源。汞主要在枯枝落叶层（浓度最高）和 0-10 厘米土层中积累。所有样本中汞的浓度在 0.04-0.97 毫克/千克之间，平均值分别为 0.38、0.28 和 0.14 毫克/千克，对应于枯枝落叶层和 0-10 厘米及 10-20 厘米土层。在中海拔带，枯枝落叶层中的汞浓度最高，而 0-10 厘米土层中的汞浓度随着海拔的升高而增加。在少数采样点，保护区土壤质量标准（0.50 毫克/千克）被超过。土壤中积累的汞总量范围为 0.8-84.8 毫克/平方米，平均值为 16.5 毫克/平方米，与储存的有机物质总量密切相关。
