Department of Physical Sciences, Earth and Environment, University of Siena, Via P.A. Mattioli 4, 53100 Siena, Italy; National Inter-University Consortium for Marine Sciences, CoNISMa, ULR Siena, Piazzale Flaminio 9, 00182 Roma, Italy.
Department of Physical Sciences, Earth and Environment, University of Siena, Via P.A. Mattioli 4, 53100 Siena, Italy; National Inter-University Consortium for Marine Sciences, CoNISMa, ULR Siena, Piazzale Flaminio 9, 00182 Roma, Italy.
Mar Pollut Bull. 2018 Aug;133:543-552. doi: 10.1016/j.marpolbul.2018.06.016. Epub 2018 Jun 19.
Monitoring efforts are required to understand the sources, distribution and abundance of microplastic pollution. To verify the abundance of microplastics along the Tuscan coastal waters (Italy), water-column and surface samples were collected in two seasons across four transects at different distances to the coast (0.5, 5, 10 and 20 km), within the implementation of the European Marine Strategy Framework Directive. The results show an average concentration of 0.26 items/m in the water-column samples and 41.1 g/km and 69,161.3 items/km of floating microplastics, with an increase with the distance to the coast The seasonality and the sampling area do not affect the abundance of microplastics. The most abundant size class is 1-2.5 mm as fragments and sheets suggesting that fragmentation of larger polyethylene and polypropylene items could be the main source of microplastics. These data represent the application of a harmonized protocol to make the data on microplastics comparable and reliable.
需要进行监测工作，以了解微塑料污染的来源、分布和丰度。为了验证托斯卡纳沿海水域（意大利）微塑料的丰度，在欧洲海洋战略框架指令的实施过程中，在两个季节横跨四个横截距（距海岸 0.5、5、10 和 20 公里）收集了水柱和表面样本。结果显示，水柱样本的平均浓度为 0.26 个/立方米，漂浮微塑料的浓度为 41.1 克/公里和 69161.3 个/公里，随着与海岸的距离增加而增加。季节性和采样区域不影响微塑料的丰度。最丰富的尺寸类别是 1-2.5 毫米的碎片和薄片，这表明较大的聚乙烯和聚丙烯物品的碎片可能是微塑料的主要来源。这些数据代表了应用协调一致的方案，使微塑料数据具有可比性和可靠性。
