Hartmann Nanna B, Rist Sinja, Bodin Julia, Jensen Louise Hs, Schmidt Stine N, Mayer Philipp, Meibom Anders, Baun Anders
Technical University of Denmark, Department of Environmental Engineering, Kgs Lyngby, Denmark.
Laboratory for Biological Geochemistry, School of Architecture, Civil and Environmental Engineering at Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland.
Integr Environ Assess Manag. 2017 May;13(3):488-493. doi: 10.1002/ieam.1904.
The occurrence and effects of microplastics (MPs) in the aquatic environment are receiving increasing attention. In addition to their possible direct adverse effects on biota, the potential role of MPs as vectors for hydrophobic organic chemicals (HOCs), compared to natural pathways, is a topic of much debate. It is evident, however, that temporal and spatial variations of MP occurrence do (and will) occur. To further improve the estimations of the role of MPs as vectors for HOC transfer into biota under varying MP concentrations and environmental conditions, it is important to identify and understand the governing processes. Here, we explore HOC sorption to and desorption from MPs and the underlying principles for their interactions. We discuss intrinsic and extrinsic parameters influencing these processes and focus on the importance of the exposure route for diffusive mass transfer. Also, we outline research needed to fill knowledge gaps and improve model-based calculations of MP-facilitated HOC transfer in the environment. Integr Environ Assess Manag 2017;13:488-493. © 2017 SETAC.
微塑料（MPs）在水生环境中的出现及其影响正受到越来越多的关注。除了它们可能对生物群产生直接不利影响外，与自然途径相比，微塑料作为疏水性有机化学物质（HOCs）载体的潜在作用是一个备受争议的话题。然而，很明显，微塑料出现的时间和空间变化确实（并且将会）发生。为了在不同的微塑料浓度和环境条件下进一步改进对微塑料作为疏水性有机化合物转移到生物群中的载体作用的估计，识别和理解控制过程很重要。在这里，我们探讨了疏水性有机化合物在微塑料上的吸附和解吸及其相互作用的基本原理。我们讨论了影响这些过程的内在和外在参数，并关注扩散传质暴露途径的重要性。此外，我们概述了填补知识空白和改进基于模型的微塑料促进环境中疏水性有机化合物转移计算所需的研究。《综合环境评估与管理》2017年；13:488 - 493。© 2017 SETAC。
