Heavy metal concentrations in marine sediments around Casey station, East Antarctica - long-term monitoring

Sediment cores (5cm diameter x 10cm deep), collected as part of the long-term monitoring of the Thala Valley waste disposal site clean-up (Casey station), were sectioned and a portion of each core analysed for a range of heavy metals. Metals were extracted from the sediment via a 4 hour 1M HCl acid extraction. Concentrations were gained from ICP-MS analysis of the resulting extracts (ICP-MS conducted at the School of Chemistry, University of Tasmania). Cores were collected from various control and potentially impacted sites in the Windmill Islands around Casey station.

This work was conducted as part of ASAC 2201 (ASAC_2201).

为开展凯西站（Casey station）塔拉谷（Thala Valley）垃圾处置场清理工作的长期监测，我们采集了规格为直径5厘米×深度10厘米的沉积物岩芯。所有岩芯经切片处理后，每份岩芯取部分试样开展多种重金属含量分析。沉积物中的金属通过1摩尔浓度盐酸（1M HCl）萃取4小时的方法提取，萃取液的浓度经由电感耦合等离子体质谱法（ICP-MS）测定，该检测工作由塔斯马尼亚大学化学学院完成。全部岩芯采集自凯西站周边风车群岛（Windmill Islands）的多个对照位点与潜在受影响区域。
本研究为ASAC 2201（ASAC_2201）项目的组成部分。