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Microplastic pollution of the beaches of Guanabara Bay, Southeast Brazil

机译：巴西东南部瓜纳巴拉湾海滩的微生物污染

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Plastic debris is widely recognized as an important marine environmental pollutant. Plastics pollution of coastal areas is a growing concern, with research efforts focusing on macroplastic (>5 mm) and microplastic fractions. Currently, a large proportion of the plastics found in the ocean are in the form of microplastics (<5 mm). Due to their buoyant and persistent properties, microplastics have the potential to be widely dispersed via hydrodynamic processes and ocean currents. Guanabara Bay has been identified as one of the most polluted environments on the Brazilian coastline, mainly due to the presence of heavy metals and hydrocarbons. The aim of this work was to investigate, using field surveys, the abundance, composition and distribution of microplastics and small plastic fragments on the beaches of Guanabara Bay, located in southeastern Brazil. Microplastic concentrations ranged from 12 to 1300 particles per m(2)on the beaches. Fibres, fragments, styrofoam and pellets accounted for 8766 particles, with microplastic fragments representing 56% of the total detected debris, followed by styrofoam fragments (26.7%), pellets (9.9%) and fibres (7.2%). (C) 2016 Elsevier Ltd. All rights reserved.
机译：塑料碎片被广泛认为是重要的海洋环境污染物。沿海地区的塑料污染日益受到关注，研究工作集中在大塑料（> 5毫米）和微塑料部分上。目前，在海洋中发现的大部分塑料都是微塑料形式（<5毫米）。由于其具有漂浮性和持久性，微塑料有可能通过流体动力学过程和洋流而广泛散布。瓜纳巴拉湾已被确定为巴西海岸线上污染最严重的环境之一，主要是由于存在重金属和碳氢化合物。这项工作的目的是通过实地调查来调查位于巴西东南部瓜纳巴拉湾的海滩上的微塑料和小的塑料碎片的含量，组成和分布。海滩上的微塑料浓度范围为每m（2）12至1300个颗粒。纤维，碎片，泡沫聚苯乙烯和丸粒占8766个颗粒，其中微塑料碎片占检测到的碎片总数的56％，其次是泡沫聚苯乙烯碎片（占26.7％），丸粒（9.9％）和纤维（占7.2％）。 （C）2016 Elsevier Ltd.保留所有权利。

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