Instituto Español de Oceanografía (IEO), Subida a Radio Faro 50, 36390 Vigo, Spain; Campus Do Mar, Facultad de Ciencias del Mar, Universidad de Vigo, 36310, Spain.
Instituto Español de Oceanografía (IEO), Subida a Radio Faro 50, 36390 Vigo, Spain.
Mar Pollut Bull. 2021 Jan;162:111814. doi: 10.1016/j.marpolbul.2020.111814. Epub 2020 Nov 6.
Microplastics (<5 mm; MPs) are globally recognized as an issue of emerging concern in the marine environment. In this study, MPs were determined for the first time in sediments from Rías Baixas and Miño river shelf, to show the baseline contamination levels. The Rías is well known for its intense fishing and shellfish harvesting activities. The sampling stations were selected due to their different exposure to anthropogenic activities and/or pressures. Sediment samples were collected using a box corer dredge and analyzed with density separation and μF-TIR analysis to determine polymer type. The results showed MPs pollution in all stations. The mean concentration was 70.2 ± 74.2 particles/kg DW. The main MPs shape was fibers (88.8%) followed by fragments (5.80%). Regarding the polymers, the most abundant were PP (43%) and HDPE (29%). Once again, MPs are ubiquitous all along Rías and Miño river mouth as previously shown in different works.
微塑料（<5 毫米；MPs）已被全球公认为海洋环境中一个新出现的关注问题。在这项研究中，首次在里亚斯-拜萨和米尼奥河架的沉积物中确定了 MPs，以显示基线污染水平。里亚斯因其渔业和贝类捕捞活动而闻名。由于其受到不同程度的人为活动和/或压力的影响，选择了采样站。使用箱形挖泥机采集沉积物样品，并进行密度分离和 μF-TIR 分析以确定聚合物类型。结果表明所有站位都存在 MPs 污染。平均浓度为 70.2±74.2 个颗粒/千克 DW。主要的 MPs 形状是纤维（88.8%），其次是碎片（5.80%）。至于聚合物，最丰富的是 PP（43%）和 HDPE（29%）。再次，如先前在不同研究中所示，MPs 无处不在，遍布整个里亚斯和米尼奥河口。
