Macroplastics in rivers: present knowledge, issues and challenges,Environmental Science: Processes & Impacts

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Macroplastics in rivers: present knowledge, issues and challenges
Environmental Science: Processes & Impacts ( IF 4.3 ) Pub Date : 2021-3-16 , DOI: 10.1039/d0em00517g
Hadeel Al-Zawaidah _{1,

2,

3} , Diego Ravazzolo _{1,

2,

3} , Heide Friedrich _{1,

2,

3}

Affiliation

Macroplastics are the primary contributor to riverine plastic pollution by mass, posing a wide range of serious threats for riverine systems, from adversely affecting various life forms within the riverine system, to potentially increasing flood risk, and generally resulting in adverse effects on any livelihoods. Compared to other river-related research disciplines, research into riverine macroplastics and their effects has not yet featured prominently. Various quantification methods are presently used to assess the presence of macroplastics at different locations within river systems; however, overcoming limitations and unifying methods remain an essential need. Macroplastic dynamics in rivers are subject to various factors, including both material and river characteristics. We review the diverse factors that potentially influence macroplastic dynamics in rivers, and highlight our knowledge limits. We advocate for future research that enables synergies between improved field quantification techniques, use of global protocols and data sharing, and laboratory experiments. This is needed to obtain a riverine macroplastic budget model, required for the implementation of targeted management practices. Finally, a multilayer potential management strategy is presented: (i) reducing the macroplastic supply into rivers; (ii) removing effectively and safely macroplastics from within rivers; and (iii) treating macroplastics once removed from the riverine system.

中文翻译：

河流中的大分子塑料：目前的知识，问题和挑战

大分子塑料是造成河道塑料污染的主要因素，对河道系统造成广泛的严重威胁，从不利影响河道系统内的各种生命形式到潜在增加洪灾风险，并通常对任何生计造成不利影响。与其他与河流有关的研究学科相比，对河系大分子塑料及其作用的研究尚未突出。目前，各种量化方法被用于评估河流系统内不同位置的大分子塑料的存在。但是，克服限制和统一方法仍然是必不可少的需求。河流中的宏观塑性动力学受多种因素影响，包括物质和河流特征。我们回顾了可能影响河流宏观塑性动力学的各种因素，并强调了我们的知识局限性。我们提倡进行未来的研究，以实现改进的现场定量技术，使用全局协议和数据共享以及实验室实验之间的协同作用。这是获得河流宏观塑料预算模型所必需的，这是实施有针对性的管理实践所必需的。最后，提出了多层潜力管理策略：（i）减少河流中的大塑料供应；（ii）从河流内部有效安全地清除大分子塑料；（iii）一旦从河流系统中移出后，对大塑料进行处理。使用全球协议和数据共享以及实验室实验。这是获得河流宏观塑料预算模型所必需的，这是实施有针对性的管理实践所必需的。最后，提出了多层潜力管理策略：（i）减少河流中的大塑料供应；（ii）从河流内部有效安全地清除大分子塑料；（iii）一旦从河流系统中移出后，对大塑料进行处理。使用全球协议和数据共享以及实验室实验。这是获得河流宏观塑料预算模型所必需的，这是实施有针对性的管理实践所必需的。最后，提出了多层潜力管理策略：（i）减少河流中的大塑料供应；（ii）从河流内部有效安全地清除大分子塑料；（iii）一旦从河流系统中移出后，对大塑料进行处理。

更新日期：2021-03-22

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