National Marine Fisheries Research Institute, Kołłątaja 1, 81-332 Gdynia, Poland.
National Marine Fisheries Research Institute, Kołłątaja 1, 81-332 Gdynia, Poland.
Mar Pollut Bull. 2020 Jun;155:111170. doi: 10.1016/j.marpolbul.2020.111170. Epub 2020 Apr 27.
Microplastic occurrence and composition were investigated along the Polish coast (southern Baltic Sea) on 12 beaches differing in terms of intensity of their touristic exploitation, urbanisation and sediment characteristics. Their mean concentrations varied between 76 and 295 items per kg dry sediment. Fibres and plastic fragments were the dominant microplastic types. Overall, no relationship was found between their concentrations and sediment characteristics. Fine sediments were not identified as microplastic pollution traps. The highest microplastic concentrations were recorded at some urban beaches indicating that population density and the level of coastal infrastructure development are important factors affecting microplastic pollution level on beaches. On the other hand, microplastic concentrations in national parks did not differ substantially from the other beaches. Our results suggest that sediment accumulation processes may exceed microplastic accumulation, and overcome the effect of tourism and/or urbanisation, highlighting the role of the beach hydrodynamic status in structuring beach microplastic pollution.
研究了波兰沿海（波罗的海南部） 12 个海滩的微塑料出现和组成情况，这些海滩在旅游开发强度、城市化和沉积物特征方面存在差异。它们的平均浓度在每公斤干沉积物 76 至 295 个项目之间变化。纤维和塑料碎片是主要的微塑料类型。总体而言，它们的浓度与沉积物特征之间没有关系。细沉积物未被确定为微塑料污染陷阱。一些城市海滩记录到的微塑料浓度最高，这表明人口密度和沿海基础设施发展水平是影响海滩微塑料污染水平的重要因素。另一方面，国家公园内的微塑料浓度与其他海滩没有明显差异。我们的结果表明，沉积物积累过程可能超过微塑料积累，并克服旅游和/或城市化的影响，突出了海滩水动力状态在构建海滩微塑料污染方面的作用。
