Steroid estrogens have received worldwide attention and given rise to great challenges of aquatic ecosystems security, posing potential adverse effects on aquatic organisms and human health even at low levels (ng/L). The present study focused on understanding the mobility and abiotic transformation of estrone (E1) and estrone-3-sulfate (E1-3S) over spatial and time scales during soil transport. Column transport experiments showed that the migration capacity of E1-3S was far stronger than E1 in soil. The calculated groundwater ubiquity score and leachability index values also indicated the high leaching mobility of E1-3S. The hydrolysis of E1-3S and abiotic transformation into estradiol and estriol was observed in the sterilized soil. Furthermore, possible transformation products (e.g., SE₂₃₉, E2₃₇₈, E1 dimer₅₃₈, E1-E2 dimer₅₄₁) of E1 and E1-3S in soil were analyzed and identified after the column transport experiments. The estrogenic activity was estimated by 17β-estradiol equivalency values during the transport process in aqueous and soil phases. Additionally, the potential leaching transport to groundwater of E1-3S requires further critical concern.

类固醇雌激素受到了全世界的关注，对水生生态系统的安全提出了巨大的挑战，即使在低水平（ng/L）的情况下也会对水生生物和人类健康产生潜在的不利影响。本研究的重点是了解土壤运输过程中雌酮 (E1) 和雌酮-3-硫酸盐 (E1-3S) 在空间和时间尺度上的流动性和非生物转化。柱运输实验表明，E1-3S在土壤中的迁移能力远强于E1。计算出的地下水普遍性得分和可浸出性指数值也表明 E1-3S 的高浸出流动性。在灭菌的土壤中观察到E1-3S的水解和非生物转化为雌二醇和雌三醇。此外，可能的转化产物（例如，SE ₂₃₉、E2柱运输实验后对土壤中E1和E1-3S的_E1二聚体538、 E1二聚体₅₃₈、E1-E2二聚体_{541 )进行分析鉴定。}在水相和土壤相的运输过程中，雌激素活性通过 17β-雌二醇当量值来估计。此外，E1-3S 向地下水的潜在浸出迁移需要进一步关注。