Trace elements concentration (surface and subsurface samples) in the floodplain sediments at the mouth of the Nysa Kłodzka River into the Oder Valley

During the field investigations, 44 sediment samples were collected for laboratory analysis - 22 surface samples and 22 subsurface samples. The data contain concentration of trace elements (the samples were air-dried, crushed (≥70% passing 2 mm) and pulverized (250 g; ≥85% passing 75 μm) then were subjected to a modified aqua regia digestion (HNO₃:HCl:H₂O at a ratio of 1:1:1), followed by inductively coupled plasma emission and mass spectrometry (ICP-ES/MS) at Acme Labs (Bureau Veritas Commodities Canada Ltd)).Reporting Detection Limits were: 0.1 ppm for Cu, Pb, Ni, Co and Cd, 0.5 ppm for As, and 1 ppm for Zn, Sr, Cr and Ba.

野外调查期间，共采集44份沉积物样品用于实验室分析，其中22份为表层样品，22份为地下层样品。本次数据集涵盖各微量元素的浓度数据：所有样品经风干、破碎（≥70%的颗粒可通过2mm孔径筛）与粉磨（总质量250g，≥85%的颗粒可通过75μm孔径筛）后，采用改进型王水消解法（硝酸(HNO₃):盐酸(HCl):水(H₂O)体积比为1:1:1）进行前处理，随后送至Acme Labs（必维国际检验集团加拿大有限公司，Bureau Veritas Commodities Canada Ltd），借助电感耦合等离子体发射光谱-质谱联用法（Inductively Coupled Plasma Emission and Mass Spectrometry，ICP-ES/MS）完成检测。本次检测的报告检出限如下：铜（Cu）、铅（Pb）、镍（Ni）、钴（Co）及镉（Cd）为0.1ppm，砷（As）为0.5ppm，锌（Zn）、锶（Sr）、铬（Cr）及钡（Ba）为1ppm。