First incidence of microplastic in commercially important food fishes and waters: A case study in the dal Lake ecosystem of North-Western Himalaya (India)

IF 3.5 3区环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES

Journal of contaminant hydrology Pub Date : 2025-05-24 DOI:10.1016/j.jconhyd.2025.104619

Sajad Ahmad Rather , Adnan Amin , Adnan Abubakr , Monisa Mehboob Malik , Ifra Tabassum , Mohd Ashraf Rather , Mansoor Ahmad Rather , Bhagyashree Dhekale , Ishtiyaq Ahmad , Hafsa Farooq Chashoo , Udai Ram Gurjar , Caterina Faggio

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引用次数: 0

Abstract

The primary objective purpose of this study was to investigate the presence of microplastics (MPs) within the Dal Lake ecosystem, specifically in the gastrointestinal tracts of commercially important food fishes and water samples. The average abundance of MPs in water samples was recorded as 196.65 ± 0.35 items per liter, while in fish species, it ranged from 3.66 ± 0.25 to 22.33 ± 0.07 items per individual. The most commonly observed shapes of MPs were fragments, followed by fibres and pellets. MPs smaller than 250 μm were predominant in both water and biota samples. Fourier-transform infrared spectroscopy (FTIR) analysis identified four types of plastic polymers- polyethylene (PE), polystyrene (PS), Polypropylene (PP) and Polyvinyl chloride (PVC) in all water and fish samples. Among these, polyethylene (PE) was the most abundant polymer detected. The presence of MPs in biota indicates their movement up the food chain to higher trophic levels, underscoring the urgent need for further research into mitigation strategies to address microplastic contamination in fish that are meant for human consumption.

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微塑料首次出现在商业上重要的食用鱼类和水域：以喜马拉雅西北部（印度）达尔湖生态系统为例

本研究的主要目的是调查Dal湖生态系统中微塑料（MPs）的存在，特别是在商业上重要的食用鱼类和水样的胃肠道中。水样中MPs的平均丰度为每升196.65±0.35个项目，鱼类中MPs的平均丰度为每升3.66±0.25 ~ 22.33±0.07个项目。最常见的MPs形状是碎片，其次是纤维和颗粒。在水体和生物群样品中均以小于250 μm的MPs居多。傅里叶变换红外光谱（FTIR）分析在所有水和鱼样品中发现了四种塑料聚合物——聚乙烯（PE）、聚苯乙烯（PS）、聚丙烯（PP）和聚氯乙烯（PVC）。其中，聚乙烯（PE）是检测到最多的聚合物。生物群中微塑料的存在表明它们在食物链中向更高的营养水平移动，强调迫切需要进一步研究缓解策略，以解决供人类食用的鱼类中的微塑料污染问题。

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

Journal of contaminant hydrology 环境科学-地球科学综合

CiteScore

6.80

自引率

2.80%

发文量

129

审稿时长

68 days

期刊介绍： The Journal of Contaminant Hydrology is an international journal publishing scientific articles pertaining to the contamination of subsurface water resources. Emphasis is placed on investigations of the physical, chemical, and biological processes influencing the behavior and fate of organic and inorganic contaminants in the unsaturated (vadose) and saturated (groundwater) zones, as well as at groundwater-surface water interfaces. The ecological impacts of contaminants transported both from and to aquifers are of interest. Articles on contamination of surface water only, without a link to groundwater, are out of the scope. Broad latitude is allowed in identifying contaminants of interest, and include legacy and emerging pollutants, nutrients, nanoparticles, pathogenic microorganisms (e.g., bacteria, viruses, protozoa), microplastics, and various constituents associated with energy production (e.g., methane, carbon dioxide, hydrogen sulfide). The journal''s scope embraces a wide range of topics including: experimental investigations of contaminant sorption, diffusion, transformation, volatilization and transport in the surface and subsurface; characterization of soil and aquifer properties only as they influence contaminant behavior; development and testing of mathematical models of contaminant behaviour; innovative techniques for restoration of contaminated sites; development of new tools or techniques for monitoring the extent of soil and groundwater contamination; transformation of contaminants in the hyporheic zone; effects of contaminants traversing the hyporheic zone on surface water and groundwater ecosystems; subsurface carbon sequestration and/or turnover; and migration of fluids associated with energy production into groundwater.