Microplastics in surface seawater of Kongsfjorden, Svalbard, Arctic

IF 6.7 2区环境科学与生态学 Q1 BIOTECHNOLOGY & APPLIED MICROBIOLOGY

Environmental Technology & Innovation Pub Date : 2024-09-07 DOI:10.1016/j.eti.2024.103819

Yubo Li , Zhibo Lu , Xin Zhang , Juan Wang , Shuiqian Zhao , Jian Shen , Lei Dong , Yunze Gao , Yifeng Yang , He Cui , Yinchuan Yang

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引用次数: 0

Abstract

Microplastics have now become an emerging contaminant with high concern in the Arctic and Sub-Arctic Region. Here, the Kongsfjorden system in the Arctic has been investigated for abundance, distribution, and characteristic of microplastics in surface seawater. Eighteen samples were collected using an in-situ filtration sampling method, and then analyzed by Fourier-transform infrared spectroscopy. The average abundance of microplastics in surface seawater was 3.6 items m⁻³, with an abundance range of 0.0—10.0 items m⁻³. The highest abundance of microplastics was located adjacent to the eddy in Kongsfjorden, where a microplastic accumulation zone might have formed. Microplastics transported by ocean currents and those from local discharges might converge in this zone. Two sampling stations were set up at the wastewater treatment plant outfall, which showed an abundance range of 4.0—6.0 items m⁻³, slightly higher than the average abundance. Of the six polymer types identified, rayon, polyester and polyamide were the most common composition. Proportions in fiber form in surface water was 84.6 %, and blue (28.2 %) and transparent (25.6 %) were predominant colors. Most microplastics (>90.0 %) were less than 1 mm in the longest dimension. This study provided important baseline data as well as a practical microplastic sampling method for polar marine environments.

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北极斯瓦尔巴群岛孔斯峡湾表层海水中的微塑料

微塑料现已成为北极和亚北极地区高度关注的新兴污染物。在此，研究人员对北极孔斯峡湾系统表层海水中微塑料的丰度、分布和特征进行了调查。采用原位过滤取样法采集了 18 个样本，然后用傅立叶变换红外光谱法进行了分析。表层海水中微塑料的平均丰度为 3.6 项 m-3，丰度范围为 0.0-10.0 项 m-3。微塑料丰度最高的地方位于康斯峡湾漩涡附近，那里可能形成了一个微塑料聚集区。洋流传播的微塑料和当地排放的微塑料可能会在该区域汇聚。在污水处理厂排放口设置了两个取样站，结果显示丰度范围为 4.0-6.0 items m-3，略高于平均丰度。在已确定的六种聚合物类型中，人造丝、聚酯和聚酰胺是最常见的成分。地表水中纤维形式的比例为 84.6%，主要颜色为蓝色（28.2%）和透明色（25.6%）。大多数微塑料（90.0%）的最长尺寸小于 1 毫米。这项研究为极地海洋环境提供了重要的基准数据和实用的微塑料取样方法。

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

Environmental Technology & Innovation Environmental Science-General Environmental Science

CiteScore

14.00

自引率

4.20%

发文量

435

审稿时长

74 days

期刊介绍： Environmental Technology & Innovation adopts a challenge-oriented approach to solutions by integrating natural sciences to promote a sustainable future. The journal aims to foster the creation and development of innovative products, technologies, and ideas that enhance the environment, with impacts across soil, air, water, and food in rural and urban areas. As a platform for disseminating scientific evidence for environmental protection and sustainable development, the journal emphasizes fundamental science, methodologies, tools, techniques, and policy considerations. It emphasizes the importance of science and technology in environmental benefits, including smarter, cleaner technologies for environmental protection, more efficient resource processing methods, and the evidence supporting their effectiveness.