Abstract:
Per- and polyfluoroalkyl substances (PFASs) have garnered considerable scientific and regulatory scrutiny due to their widespread distribution across environments and their potential toxicological impacts on human health. The pedosphere serves as a vital reservoir for these chemicals, significantly determining their environmental trajectory and chemical transformations. This study offers a comprehensive synthesis of the current understanding regarding the adsorption mechanics of PFASs in soil matrices. Due to their unique molecular structure, PFASs predominantly engage in hydrophobic and electrostatic interactions during soil adsorption. This work thoroughly evaluates the influence of various factors on adsorption efficiency, including soil properties, molecular characteristics of PFASs, and the prevailing environmental conditions. The complex nature of soil environments complicates isolating individual impacts on PFAS behavior, necessitating an integrated approach to understanding their environmental destinies better. Through this exploration, we seek to clarify the complex interplay of factors that modulate the adsorption of PFASs in soils, highlighting the urgent need for future research to disentangle the intricate and combined effects that control the environmental behavior of PFAS compounds.
摘要:
全氟烷基和多氟烷基物质(PFAS)由于其在环境中的广泛分布及其对人类健康的潜在毒理学影响而受到了相当多的科学和监管审查。土壤圈是这些化学物质的重要蓄水池,显著决定了它们的环境轨迹和化学转化。这项研究提供了有关PFAS在土壤基质中的吸附力学的当前理解的全面综合。由于其独特的分子结构,在土壤吸附过程中,PFAS主要参与疏水和静电相互作用。这项工作彻底评估了各种因素对吸附效率的影响,包括土壤性质,PFAS的分子特征,和当前的环境条件。土壤环境的复杂性使隔离个体对PFAS行为的影响变得复杂,需要采取综合方法来更好地了解他们的环境命运。通过这次探索,我们试图阐明调节土壤中PFASs吸附的因素之间复杂的相互作用,强调了未来研究的迫切需要,以解开控制PFAS化合物环境行为的复杂和组合效应。