Microplastics and anthropogenic fibre concentrations in lakes reflect surrounding land use.
Microplastics and anthropogenic fibre concentrations in lakes reflect surrounding land use.
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DOI：
10.1371/journal.pbio.3001389
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发表时间：
2021-09
期刊：
影响因子：
9.8
通讯作者：
Lebreton L
中科院分区：
文献类型：
--
作者：
Tanentzap AJ;Cottingham S;Fonvielle J;Riley I;Walker LM;Woodman SG;Kontou D;Pichler CM;Reisner E;Lebreton L
微塑料和人为纤维的污染威胁着湖泊，但我们对哪些因素预测其积累知之甚少。湖泊可能特别受到污染，因为水滞留时间长，而且靠近污染源。在这里，我们调查了人为微粒，即，在横跨30°纬度和大环境梯度的67个欧洲湖泊的表层沃茨中，微塑料和人为纤维。通过整理来自2,100多个已发表的拖网的数据，我们发现我们实地调查中的微粒浓度高于以前报告的湖泊中的微粒浓度，与河流和海洋相当。然后，我们在实地调查中将微粒浓度与周围的土地利用，水化学和塑料排放量联系起来，以根据当地水文，人口密度和废物产生量估计的地点。欧洲湖泊中的微粒浓度翻了两番，因为估计管理不善的废物投入和废水处理负荷在集水区增加。在周围森林覆盖和潜在的湖中生物降解范围内，浓度分别下降了2倍和5倍。由于人为废弃物继续污染环境，我们的数据将有助于为未来的工作提供背景，我们的模型可以为控制和修复工作提供信息。来自微塑料和人为纤维的污染威胁着湖泊，但我们对哪些因素预测其积累知之甚少。这项研究对横跨30°纬度的67个欧洲湖泊进行了调查，结果表明，经济和环境指标预测了人为微粒对湖泊的污染。
Pollution from microplastics and anthropogenic fibres threatens lakes, but we know little about what factors predict its accumulation. Lakes may be especially contaminated because of long water retention times and proximity to pollution sources. Here, we surveyed anthropogenic microparticles, i.e., microplastics and anthropogenic fibres, in surface waters of 67 European lakes spanning 30° of latitude and large environmental gradients. By collating data from >2,100 published net tows, we found that microparticle concentrations in our field survey were higher than previously reported in lakes and comparable to rivers and oceans. We then related microparticle concentrations in our field survey to surrounding land use, water chemistry, and plastic emissions to sites estimated from local hydrology, population density, and waste production. Microparticle concentrations in European lakes quadrupled as both estimated mismanaged waste inputs and wastewater treatment loads increased in catchments. Concentrations decreased by 2 and 5 times over the range of surrounding forest cover and potential in-lake biodegradation, respectively. As anthropogenic debris continues to pollute the environment, our data will help contextualise future work, and our models can inform control and remediation efforts. Pollution from microplastics and anthropogenic fibres threatens lakes, but we know little about what factors predict its accumulation. This study uses a survey of 67 European lakes spanning 30° of latitude to show that economic and environmental indicators predict the pollution of lakes by anthropogenic microparticles.
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