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Plastic debris in rivers

机译：河流中的塑料碎片

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Plastic pollution in aquatic ecosystems is an emerging environmental risk, as it may negatively impacts ecology, endangers aquatic species, and causes economic damage. Rivers are known to play a crucial role in transporting land‐based plastic waste to the world's oceans, but riverine ecosystems are also directly affected by plastic pollution. To better quantify global plastic pollution transport and to effectively reduce sources and risks, a thorough understanding of origin, transport, fate, and effects of riverine plastic debris is crucial. In this overview paper, we discuss the current scientific state on plastic debris in rivers and evaluate existing knowledge gaps. We present a brief background of plastics, polymer types typically found in rivers, and the risk posed to aquatic ecosystems. Additionally, we elaborate on the origin and fate of riverine plastics, including processes and factors influencing plastic debris transport and its spatiotemporal variation. We present an overview of monitoring and modeling efforts to characterize riverine plastic transport, and give examples of typical values from around the world. Finally, we present an outlook to riverine plastic research. With this paper, we aim to present an inclusive and comprehensive overview of riverine plastic debris research to date and suggest multiple ways forward for future research.
机译：水生生态系统中的塑料污染是一种新兴的环境风险，因为它可能会对生态学产生负面影响，危害水生物种并造成经济损害。众所周知，河流在将基于土地的塑料废物运输到世界海洋中起着至关重要的作用，但是河流生态系统也直接受到塑料污染的影响。为了更好地量化全球塑料污染运输并有效地减少来源和风险，对河流塑料碎片的起源，运输，命运和影响的彻底了解至关重要。在本概述论文中，我们讨论了当前关于河流塑料碎片的科学状态，并评估现有的知识差距。我们提供了塑料，通常在河流中发现的聚合物类型以及对水生生态系统的风险的简短背景。此外，我们详细介绍了河流塑料的起源和命运，包括影响塑料碎片运输及其时空变异的过程和因素。我们介绍了监测和建模工作，以表征河流塑料运输，并提供来自世界各地的典型价值的例子。最后，我们对河流塑料研究展示了前景。借助本文，我们旨在介绍迄今为止河流塑料碎片研究的包容性和全面概述，并为未来的研究提出了多种前进的方式。

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