Microplastic pollution in the surface waters of the Bohai Sea, China.
Microplastic pollution in the surface waters of the Bohai Sea, China.
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DOI：
10.1016/j.envpol.2017.08.058
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发表时间：
2017-12
影响因子：
8.9
通讯作者：
Weiwei Zhang;Shoufeng Zhang;Juying Wang;Yan Wang;J. Mu;Ping Wang;Xinzhen Lin;Deyi Ma
中科院分区：
文献类型：
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作者：
Weiwei Zhang;Shoufeng Zhang;Juying Wang;Yan Wang;J. Mu;Ping Wang;Xinzhen Lin;Deyi Ma
水环境中微塑料的普遍存在和持久性特别令人关切，因为这些污染物对海洋生物和生态系统构成越来越大的威胁。识别微塑料的分布模式将有助于了解它们对环境和有机体的潜在影响的规模。本研究首次报道了渤海海域微塑料的赋存和分布。2016年8月，我们在渤海11个站点使用330μm的拖网对漂浮微塑料进行了采样。对采集的碎石样品的丰度、成分、大小、形状和颜色进行了分析。微塑料平均浓度为0.33±0.34颗粒/立方米。显微傅里叶变换红外光谱分析表明，微塑料的主要类型为聚乙烯、聚丙烯和聚苯乙烯。随着塑料尺寸的减小，聚丙烯的含量增加，而聚乙烯和聚苯乙烯的含量减少。塑料碎片、线条和薄膜占收集样本的大部分。一些站点的堆积可能与输送和滞留机制有关，这些机制与风和边缘流的动态以及塑料的不同来源有关。
The ubiquitous presence and persistency of microplastics in aquatic environments is of particular concern because these pollutants represent an increasing threat to marine organisms and ecosystems. An identification of the patterns of microplastic distribution will help to understand the scale of their potential effect on the environment and on organisms. In this study, the occurrence and distribution of microplastics in the Bohai Sea are reported for the first time. We sampled floating microplastics at 11 stations in the Bohai Sea using a 330 μm trawling net in August 2016. The abundance, composition, size, shape and color of collected debris samples were analyzed after pretreatment. The average microplastic concentration was 0.33 ± 0.34 particles/m3. Micro-Fourier transform infrared spectroscopy analysis showed that the main types of microplastics were polyethylene, polypropylene, and polystyrene. As the size of the plastics decreased, the percentage of polypropylene increased, whereas the percentages of polyethylene and polystyrene decreased. Plastic fragments, lines, and films accounted for most of the collected samples. Accumulation at some stations could be associated with transport and retention mechanisms that are linked to wind and the dynamics of the rim current, as well as different sources of the plastics.