Modelling scenarios of environmental recovery after implementation of controls on emissions of persistent organic pollutants.,Environmental Science: Processes & Impacts

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Modelling scenarios of environmental recovery after implementation of controls on emissions of persistent organic pollutants.
Environmental Science: Processes & Impacts ( IF 4.3 ) Pub Date : 2020-08-06 , DOI: 10.1039/d0em00137f
S D W Comber ₁ , M J Gardner ₂ , C Constantino ₂ , S Firth ₂ , A Hargreaves ₂ , R Davies ₂

Affiliation

Comparison of monitoring data with toxicologically-derived environmental quality standards (EQSs) forms the basis of assessments of the quality status of the water environment. Having established the status quo, the logical next step is to address instances of non-compliance with EQSs by applying remedial measures, including reducing the use or at least the emission of the substances of concern or by taking steps to reduce concentrations already present using technological solutions such as enhanced wastewater treatment. The selection of suitable remedial measures must be a compromise between cost, likely effectiveness and the timescale over which improvements might be acceptable. The decision on overall environmental management has also to take into account the need for demonstrable progress; this might mean that it is preferable to address some more readily achievable goal rather than to attempt to solve a more serious, but ultimately intractable problem. This paper describes the development and application of a generic modelling tool that provides a way of assessing the potential requirements for remedial actions and their likely outcomes over a timescale of up to forty years taking account of sediment partitioning, environmental degradation and biological accumulation. The tool was validated using a detailed UK wastewater treatment works effluent discharge dataset. Examples involving several chemicals that are of current concern are provided. Some substances (e.g. tributyltin, PFOS) are identified as likely to meet EQS values in sediments or biota in a relatively short timescale; others (PAHs, DEHP) appear to represent more intractable problems.

中文翻译：

实施持久性有机污染物排放控制措施后的环境恢复情景建模。

监测数据与毒理学上的环境质量标准（EQSs）的比较构成了评估水环境质量状况的基础。确定现状后，下一步的逻辑就是通过采取补救措施来解决不符合EQS的情况，包括减少使用或至少减少所关注物质的排放，或采取措施降低使用技术已经存在的浓度解决方案，例如加强废水处理。选择适当的补救措施必须在成本，可能的有效性和可接受的改进时间范围之间做出折衷。关于总体环境管理的决定还必须考虑到取得明显进展的必要性；这可能意味着最好解决一些更容易实现的目标，而不是尝试解决更严重但最终棘手的问题。本文描述了通用建模工具的开发和应用，该工具提供了一种评估补救措施的潜在要求及其在长达四十年的时间范围内可能产生的结果的方法，其中考虑了沉积物分配，环境退化和生物积累。使用详细的英国废水处理厂废水排放数据集对该工具进行了验证。提供了涉及几种当前关注的化学品的示例。一些物质（本文介绍了通用建模工具的开发和应用，该工具提供了一种评估补救措施的潜在要求及其在长达40年的时间范围内可能产生的结果的方法，其中考虑了沉积物的分配，环境退化和生物积累。使用详细的英国废水处理厂废水排放数据集对该工具进行了验证。提供了涉及几种当前关注的化学品的示例。一些物质（本文描述了通用建模工具的开发和应用，该工具提供了一种评估补救措施的潜在要求及其在长达四十年的时间范围内可能产生的结果的方法，其中考虑了沉积物分配，环境退化和生物积累。使用详细的英国废水处理厂废水排放数据集对该工具进行了验证。提供了涉及几种当前关注的化学品的示例。一些物质（使用详细的英国废水处理厂废水排放数据集对该工具进行了验证。提供了涉及几种当前关注的化学品的示例。一些物质（使用详细的英国废水处理厂废水排放数据集对该工具进行了验证。提供了涉及几种当前关注的化学品的示例。一些物质（如三丁基锡，全氟辛烷磺酸）被确定为可能在相对较短的时间内满足沉积物或生物群中的EQS值；其他（PAH，DEHP）似乎代表了更棘手的问题。

更新日期：2020-09-23

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