First Evidence of Microplastic Ingestion by Riverine Fish From the Freshwater of Northwest Peninsular Malaysia

IF 3.6 4区环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES Environmental Toxicology and Chemistry Pub Date : 2024-08-09 DOI:10.1002/etc.5971

Siti Norabiatulaiffa Mohd Yamen, Mohd Saiful Samsudin, Azman Azid, Mohd Nurazzi Norizan, Aidee Putera Kamal Suradee, Muhammad Izzul Fahmi Mohd Rosli

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Abstract

In a baseline study, we investigated microplastic contamination in fish from the Pinang and Kerian Rivers in Northwest Peninsular Malaysia. In recognition of the growing concern over microplastic pollution in aquatic environments, we aimed to assess the abundance and characteristics of microplastics ingested by various fish species. Fish samples were collected from local fishermen, followed by a digestion process using 10% potassium hydroxide (KOH). Microplastics were isolated and analyzed through visual examination and attenuated total reflectance Fourier transform infrared spectroscopy. The results revealed a high prevalence of microplastics, with Johnius borneensis and Oreochromis sp. exhibiting the highest abundance, averaging 48.6 and 42.8 microplastics/g, respectively. The predominant shapes were fibers (55.6%) and fragments (25.9%), with colors primarily transparent (48.19%) and black (30.12%). Our results indicate significant contamination levels in freshwater fish, emphasizing the need for further research and effective mitigation strategies. These findings provide crucial baseline data on microplastics in Malaysian freshwater ecosystems. Environ Toxicol Chem 2024;43:2189–2198. © 2024 SETAC

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马来西亚西北半岛淡水中的河鱼摄入微塑料的首个证据。

在一项基线研究中，我们调查了马来西亚西北半岛槟榔屿河和吉里安河鱼类体内的微塑料污染情况。鉴于人们对水生环境中的微塑料污染日益关注，我们旨在评估各种鱼类摄入的微塑料的数量和特征。我们从当地渔民那里采集了鱼类样本，然后用10%氢氧化钾（KOH）进行消化处理。通过目测和衰减全反射傅立叶变换红外光谱法对微塑料进行分离和分析。结果表明，微塑料的普遍程度很高，其中，Johnius borneensis 和 Oreochromis sp.的微塑料含量最高，平均分别为 48.6 微塑料/克和 42.8 微塑料/克。主要形状为纤维（55.6%）和碎片（25.9%），颜色主要为透明（48.19%）和黑色（30.12%）。我们的研究结果表明，淡水鱼中的污染水平很高，强调了进一步研究和有效缓解策略的必要性。这些发现为马来西亚淡水生态系统中的微塑料提供了重要的基线数据。环境毒物化学 2024;00:1-10。© 2024 SETAC.

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来源期刊

Environmental Toxicology and Chemistry 环境科学-毒理学

CiteScore

7.40

自引率

9.80%

发文量

265

审稿时长

3.4 months

期刊介绍： The Society of Environmental Toxicology and Chemistry (SETAC) publishes two journals: Environmental Toxicology and Chemistry (ET&C) and Integrated Environmental Assessment and Management (IEAM). Environmental Toxicology and Chemistry is dedicated to furthering scientific knowledge and disseminating information on environmental toxicology and chemistry, including the application of these sciences to risk assessment.[...] Environmental Toxicology and Chemistry is interdisciplinary in scope and integrates the fields of environmental toxicology; environmental, analytical, and molecular chemistry; ecology; physiology; biochemistry; microbiology; genetics; genomics; environmental engineering; chemical, environmental, and biological modeling; epidemiology; and earth sciences. ET&C seeks to publish papers describing original experimental or theoretical work that significantly advances understanding in the area of environmental toxicology, environmental chemistry and hazard/risk assessment. Emphasis is given to papers that enhance capabilities for the prediction, measurement, and assessment of the fate and effects of chemicals in the environment, rather than simply providing additional data. The scientific impact of papers is judged in terms of the breadth and depth of the findings and the expected influence on existing or future scientific practice. Methodological papers must make clear not only how the work differs from existing practice, but the significance of these differences to the field. Site-based research or monitoring must have regional or global implications beyond the particular site, such as evaluating processes, mechanisms, or theory under a natural environmental setting.

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