Bošković Neda, Jaćimović Željko, Bajt Oliver
Centre for Interdisciplinary and Multidisciplinary Studies, University of Montenegro, Cetinjski put b.b. 81000 Podgorica, Montenegro.
Faculty of Metallurgy and Technology, University of Montenegro, Cetinjski put b.b. 81000 Podgorica, Montenegro.
Sci Total Environ. 2023 Dec 20;905:167206. doi: 10.1016/j.scitotenv.2023.167206. Epub 2023 Sep 18.
Concern regarding microplastic (MP) pollution in aquatic ecosystems has increased in recent years with growing awareness of the environmental harm that it causes. While most studies have focused on seas and oceans, knowledge of MP occurrence in freshwater sediments is limited. This study investigated MP concentrations at shore sediments of the Zeta, Morača, and Bojana rivers in Montenegro. The MP concentration in the studied samples varied depending on the river, location, and sampling season. MP abundance in river shore sediments varied between mean values of 145 ± 110 MPs/kg for the Zeta, 169 ± 113 MPs/kg for the Morača, and 180 ± 53.5 MPs/kg dry sediment for the Bojana. In comparison, the mean MP abundance in the three rivers combined was 163.6 ± 96.1 MPs/kg of dry sediment. The identified MPs were mainly fibres and fragments of blue, red and clear color, 0.5-1 mm in size, and mainly composed of polyethylene, polypropylene, polyamide and polyethylene terephthalate. The main contribution of this study is that it provides new insight into MP abundance in freshwater sediments of rivers, where the studied rivers were identified as a potential important sink and source of MP on the Montenegrin coast.
近年来，随着人们对微塑料（MP）对水生生态系统造成的环境危害的认识不断提高，对其污染问题的关注也日益增加。虽然大多数研究都集中在海洋，但关于淡水沉积物中微塑料存在情况的了解却很有限。本研究调查了黑山的泽塔河、莫拉查河和博亚纳河岸边沉积物中的微塑料浓度。研究样本中的微塑料浓度因河流、位置和采样季节而异。河岸沉积物中的微塑料丰度在泽塔河的平均值为145±110个微塑料/千克、莫拉查河为169±113个微塑料/千克、博亚纳河干沉积物为180±53.5个微塑料/千克之间变化。相比之下，三条河流的微塑料平均丰度为163.6±96.1个微塑料/千克干沉积物。鉴定出的微塑料主要是蓝色、红色和透明的纤维和碎片，尺寸为0.5 - 1毫米，主要由聚乙烯、聚丙烯、聚酰胺和聚对苯二甲酸乙二酯组成。本研究的主要贡献在于，它为河流淡水沉积物中的微塑料丰度提供了新的见解，其中所研究的河流被确定为黑山海岸微塑料的一个潜在重要汇和源。
