Susquehanna Shale Hills Critical Zone Observatory - Sequential filtration of stream and groundwater of the Shale Hills catchment

Abstract: Stream and groundwater of the Shale Hills catchment in the Shale Hills Critical Zone Observatory in Pennsylvania were filtered through various pore-sized filters (5µm, 3µm, 1µm, 0.45µm, 0.2 µm, 100 Kda, 1 Kda). Groundwater samples were collected at various depths from W7, W8, W11, CZMW1, CZMW2, and CZMW4). All the filtrates were acidified to 2% (v/v) using nitric acid. Major cations were analyzed using a ICP-AES and minor and trace elements were analyzed using a ICP-MS. This work was funded by NSF Critical Zone Observatory program grants to C. Duffy (EAR 07-25019) and S. L. Brantley (EAR 12-39285, EAR 13-31726).摘要：宾夕法尼亚州页岩山丘关键带观测站（Shale Hills Critical Zone Observatory）内的页岩山丘流域的溪流与地下水样品，经不同孔径滤膜（5μm、3μm、1μm、0.45μm、0.2μm、100 kDa、1 kDa）逐级过滤。地下水样品采集自W7、W8、W11、CZMW1、CZMW2及CZMW4监测井的不同深度。所有滤液均采用硝酸酸化至体积分数2%（v/v）。主要阳离子通过电感耦合等离子体原子发射光谱法（ICP-AES）进行分析，微量与痕量元素则通过电感耦合等离子体质谱法（ICP-MS）完成检测。本研究受美国国家科学基金会（National Science Foundation, NSF）关键带观测站项目资助，资助编号分别为授予C.达菲（C. Duffy）的EAR 07-25019，以及授予S.L.布兰特利（S. L. Brantley）的EAR 12-39285与EAR 13-31726。