Occurrence and visual characterization of microplastics from Mahakam River at Tenggarong City, Indonesia

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

Journal of contaminant hydrology Pub Date : 2024-10-09 DOI:10.1016/j.jconhyd.2024.104440

Yudi Sukmono , Tony Hadibarata , Risky Ayu Kristanti , Abhishek Singh , Dunia A. Al Farraj , Mohamed S. Elshikh

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引用次数: 0

Abstract

Indonesia generates approximately 7.8 million tons of plastic waste annually, which 4.9 million tons is mismanaged. Presently, there is significant concern on microplastics (MPs) pollution in aquatic environment. The research on the prevalence of MPs in river systems are comparatively lower than the studies conducted on marine systems. The primary goal of this research was to look into the prevalence of MPs in the river water of Mahakam of Tenggarong City, Indonesia. To adequately represent this area, a meticulous selection method was used to find five separate sampling locations, with two stations at each location, positioned 200 m apart on opposite sides of the river. According to the study's findings, MPs has been observed in the range of 19.2 ± 1.8 to 58.5 ± 3.5 particles/l. Based on the MPs type, fragments (43.4 %) were the most common type of MPs found in water samples. Furthermore, 44.6 % of the MPs had size smaller than 1000 μm. The prevalent hues observed in the water samples were transparent and black, composing 75.6 % of overall formation. The determination of microplastic polymers employed Attenuated Total Reflection-Fourier Transform Infrared (ATR-FTIR) spectroscopy, revealing the presence of various type, such as polyethylene (PE) and polypropylene (PP).

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印度尼西亚登加龙市马哈卡姆河中微塑料的出现和目测特征

印度尼西亚每年产生约 780 万吨塑料垃圾，其中 490 万吨管理不善。目前，水生环境中的微塑料（MPs）污染问题备受关注。与海洋系统的研究相比，河流系统中微塑料的研究相对较少。本研究的主要目标是调查印度尼西亚腾加龙市马哈卡姆河水中 MPs 的流行情况。为了充分代表这一地区，研究人员采用了细致的选择方法，在河对岸相距 200 米的地方分别找到五个采样点，每个采样点设两个站点。根据研究结果，观察到的 MPs 在 19.2 ± 1.8 至 58.5 ± 3.5 微粒/升之间。根据 MPs 类型，碎片（43.4%）是水样中最常见的 MPs 类型。此外，44.6%的 MPs 尺寸小于 1000 微米。在水样中观察到的主要色调是透明和黑色，占总色调的 75.6%。微塑料聚合物的测定采用了衰减全反射-傅立叶变换红外光谱法（ATR-FTIR），结果显示存在各种类型的微塑料聚合物，如聚乙烯（PE）和聚丙烯（PP）。

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.