Plastic dispersion in Northeast Brazil beaches and plastic contaminant detection in Brazilian coast fishing nets

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

Marine pollution bulletin Pub Date : 2025-05-30 DOI:10.1016/j.marpolbul.2025.118221

Greici Gubert , Bruna de Ramos , Ronei Cardoso de Oliveira , Karolliny Barbosa de Araújo , Arthur Martins Gabriel , Kátia Alves Ribeiro , Emilly de Souza Cordeiro , Daniele dos Santos Aragão , José Domingos dos Santos Silva , Monica Ferreira da Costa , Emerson Rodrigues de Camargo , Wallace Duarte Fragoso , Sherlan Guimarães Lemos , Ernesto Chaves Pereira de Souza , Priscila Gubert

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引用次数: 0

Abstract

This study investigates the dispersion of floating plastic from Recife-PE harbor using a particle tracking model and examines contaminants in fishing nets collected from Brazilian beaches. Simulations were conducted for both dry and rainy seasons. Fishing nets were collected from eight beaches for analysis. The plastic movement simulation showed particles dispersed 0.41 km southward during the dry season and 177.50 km northward during the rainy season. Most particles (90 %) beached within the first week, indicating localized litter distribution. The study identified 14 pesticide residues in the collected nets, along with heavy metals such as arsenic, cadmium, chromium, copper, nickel, zinc, and iron, detected via Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES). The pesticide and metal data were used to calculate the toxicological priority index (ToxPi), showing the sample from Joaquina-SC had the highest toxicity, while the sample from Sancho-PE had the lowest. Principal component analysis (PCA) and hierarchical cluster analysis (HCA) revealed pollution patterns, with potential associations between pesticides and metals. These findings raise concerns about the contaminants' impact on marine organisms and human health, highlighting the importance of understanding plastic pollution dynamics and associated risks. Also, the outcomes emphasize the need to reevaluate environmental regulations to better protect ecosystems and species from harmful pollutants, including plastics.

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巴西东北部海滩的塑料分散和巴西海岸渔网中的塑料污染物检测

本研究使用颗粒跟踪模型调查了来自累西腓-聚乙烯港的漂浮塑料的分散情况，并检查了从巴西海滩收集的渔网中的污染物。对旱季和雨季进行了模拟。从8个海滩收集渔网进行分析。塑料运动模拟显示，枯水期颗粒向南扩散0.41 km，雨季颗粒向北扩散177.50 km。大多数颗粒（90%）在第一周内搁浅，表明凋落物分布局部。该研究通过电感耦合等离子体光学发射光谱法（ICP-OES）检测，在收集的蚊帐中发现了14种农药残留，以及砷、镉、铬、铜、镍、锌和铁等重金属。利用农药和金属数据计算毒理学优先指数（ToxPi），结果表明，Joaquina-SC样品毒性最高，Sancho-PE样品毒性最低。主成分分析（PCA）和层次聚类分析（HCA）揭示了农药和金属之间的潜在关联。这些发现引起了人们对污染物对海洋生物和人类健康影响的关注，强调了了解塑料污染动态和相关风险的重要性。此外，研究结果强调有必要重新评估环境法规，以更好地保护生态系统和物种免受包括塑料在内的有害污染物的侵害。

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.