Microplastic occurrence and distribution in the Gulf of Guayaquil, Ecuador

IF 5.3 3区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Marine pollution bulletin Pub Date : 2024-11-14 DOI:10.1016/j.marpolbul.2024.117288

Inés Arteaga , Verónica Pinos-Vélez , Mariana Capparelli , Gabriel M. Moulatlet , Isabel Cipriani-Avila , Marcela Cabrera , Eduardo Rebolledo , Camila Arnés-Urgellés , María Elena Cazar

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Abstract

Microplastics (MPs) were assessed in water and sediment samples along the Salado Estuary, an estuarine system composed of a complex river drainage network in Guayas, Ecuador. MPs were quantified and categorized according to shape, size, and composition. Pellet morphology (237,490 MP/L) and transparent color MPs (252,990 MP/L) were the most common in water, while fragments (27,330 MP/m³) and silver color MPs (25,310 MP/kg) were the most common in solid samples (river sediments, mangrove mud, and sand). MPs made of Polycarbonate, Polyestyrene, and Polypropylene were the most common in all samples. Giving MPs characteristics, likely mapped sources were wastewater from Guayaquil and surrounding towns, boats, and shrimp farms. The samples with the highest MPs were found near Guayaquil, and those with the least were found in the estuary mouth. Monitoring and managing plastic disposal in estuaries are fundamental, as we report a small part of an undocumented issue here.

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厄瓜多尔瓜亚基尔湾微塑料的出现和分布。

萨拉多河口是一个由厄瓜多尔瓜亚斯州复杂的河流排水网络组成的河口系统，对萨拉多河口沿岸的水和沉积物样本中的微塑料（MPs）进行了评估。根据形状、大小和成分对微粒进行了量化和分类。颗粒形态（237,490MP/L）和透明色 MP（252,990MP/L）在水中最为常见，而碎片（27,330MP/m3）和银色 MP（25,310MP/kg）在固体样本（河流沉积物、红树林泥和沙子）中最为常见。聚碳酸酯、聚乙烯和聚丙烯制成的 MP 在所有样本中最为常见。根据 MPs 的特征，映射来源可能是瓜亚基尔及周边城镇的废水、船只和养虾场。MPs 最高的样本出现在瓜亚基尔附近，MPs 最低的样本出现在河口。监测和管理河口的塑料处理至关重要，因为我们在此报告的只是未记录问题的一小部分。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Marine pollution bulletin 环境科学-海洋与淡水生物学

CiteScore

10.20

自引率

15.50%

发文量

1077

审稿时长

68 days

期刊介绍： Marine Pollution Bulletin is concerned with the rational use of maritime and marine resources in estuaries, the seas and oceans, as well as with documenting marine pollution and introducing new forms of measurement and analysis. A wide range of topics are discussed as news, comment, reviews and research reports, not only on effluent disposal and pollution control, but also on the management, economic aspects and protection of the marine environment in general.