Apell Jennifer N, Tcaciuc A Patricia, Gschwend Philip M
Ralph M Parsons Laboratory, Department of Civil & Environmental Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA.
MIT/WHOI Joint Program in Chemical Oceanography, Woods Hole, Massachusetts, USA.
Integr Environ Assess Manag. 2016 Jul;12(3):486-92. doi: 10.1002/ieam.1697. Epub 2015 Oct 22.
Polymeric passive samplers have become a common method for estimating freely dissolved concentrations in environmental media. However, this approach has not yet been adopted by investigators conducting remedial investigations of contaminated environmental sites. Successful adoption of this sampling methodology relies on an understanding of how passive samplers accumulate chemical mass as well as developing guidance for the design and deployment of passive samplers. Herein, we outline the development of a simple mathematical relationship of the environmental, polymer, and chemical properties that control the uptake rate. This relationship, called a timescale, is then used to illustrate how each property controls the rate of equilibration in samplers deployed in the water or in the sediment. Guidance is also given on how to use the timescales to select an appropriate polymer, deployment time, and suite of performance reference compounds. Integr Environ Assess Manag 2016;12:486-492. © 2015 SETAC.
聚合物被动采样器已成为估算环境介质中自由溶解浓度的常用方法。然而，进行污染环境场地修复调查的研究人员尚未采用这种方法。成功采用这种采样方法依赖于对被动采样器如何累积化学物质以及制定被动采样器设计与部署指南的理解。在此，我们概述了控制吸收速率的环境、聚合物和化学性质之间简单数学关系的推导。这种关系称为时间尺度，随后用于说明每种性质如何控制部署在水中或沉积物中的采样器的平衡速率。还给出了如何使用时间尺度来选择合适的聚合物、部署时间和一套性能参考化合物的指南。《综合环境评估与管理》2016年；12:486 - 492。©2015 SETAC。
