Data to: Evaluation of Standardised (ISO) Leaching Tests for Assessing Leaching and Solid–Solution Partitioning of Perfluoroalkyl Substances (PFAS) in Soils

The dataset contains chemical analysis results of PFAS concentrations in soils and leacha-tes (eluats) from leaching tests performed on the soils studied. The data set is the raw data derived for the study by Kleja et al (2025). The set contains results for one field-contaminated soil and three spiked soils (12 PFAS contaminants) aged for 5 months, all of which were examined using batch tests in accordance with ISO 21268-2: 2019 with either deionised water or 1 mM CaCl2 as leachant (liquid-to-solid phase ratio (L/S) of 10) and percolation tests according to ISO 21268-3:2019 with 1 mM CaCl2 as leaching fluid. The solubility of PFAS as a function of tumbling time (1, 8, 24, 48, 96 and 240 hours) with 1 mM CaCl2 as leachant in the batch test (ISO 21268-2:2019) was also investigated. Leach-ate (eluate) produced using ISO 21268-3:2019 was analysed for PFAS, pH and conductivi-ty, while leachate from ISO 21268-2:2019 was also analysed for DOC, Al, Ca, Fe, K, Mg, Mn, Na, Cl and SO4.
Kleja, D.B.; Campos-Pereira, H.; Kikuchi-McIntosh, J.; Petersson, M.; Golovko, O.; Enell, A. Evaluation of Standardised (ISO) Leaching Tests for Assessing Leaching and Solid–Solution Partitioning of Perfluoroalkyl Substances (PFAS) in Soils. Environments 2025, 12, 179. https://doi.org/10.3390/environments12060179

本数据集包含所研究土壤的化学分析结果，具体为土壤及浸出试验所得浸出液（洗脱液）中的全氟和多氟烷基物质（PFAS）浓度。
该数据集为Kleja等人2025年研究的原始数据。
数据集涵盖1份田间污染土壤与3份经5个月陈化的人工添加污染土壤，共涉及12种PFAS污染物。所有样品均依据ISO 21268-2:2019标准开展批量浸出试验，浸提剂分别为去离子水或1 mM氯化钙，液固比（L/S）为10；同时按照ISO 21268-3:2019标准开展渗滤浸出试验，浸提流体为1 mM氯化钙。
此外，本研究还针对以1 mM氯化钙为浸提剂的批量浸出试验（ISO 21268-2:2019），探究了PFAS溶解度随翻滚时长（1、8、24、48和240小时）的变化规律。
对按照ISO 21268-3:2019标准制备的浸出液，分析了其中的PFAS含量、pH及电导率；对按照ISO 21268-2:2019标准得到的浸出液，则额外检测了溶解性有机碳（Dissolved Organic Carbon，DOC）以及Al、Ca、Fe、K、Mg、Mn、Na、Cl和SO4等组分。
参考文献：Kleja, D.B.; Campos-Pereira, H.; Kikuchi-McIntosh, J.; Petersson, M.; Golovko, O.; Enell, A. 土壤中全氟和多氟烷基物质（PFAS）浸出与固液分配评估的标准化（ISO）浸出试验评价. 《环境》(Environments) 2025, 12, 179. https://doi.org/10.3390/environments12060179