从热带浅水湖泊的水和沉积物取样中评估微塑料证据。

IF 2.5 4区 环境科学与生态学 Q3 ENGINEERING, ENVIRONMENTAL Water Environment Research Pub Date : 2024-09-01 DOI:10.1002/wer.11123
Samuel Macario Padilla-Jimenez, Rodrigo Moncayo-Estrada, Daniel Tapia Maruri, Dioselina Álvarez-Bernal
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引用次数: 0

摘要

由于人类活动的直接影响,微塑料(MPs)严重威胁着内陆水体。本研究评估了热带浅水湖泊中微塑料的空间和时间模式,描述了它们的大小、形态和聚合物类型。研究人员在三个季节收集了查帕拉湖的水和沉积物样本,并使用体视显微镜对 MPs 进行了量化。通过环境扫描电子显微镜和傅立叶变换红外光谱测定了微塑料的结构、元素组成和聚合物成分。在 2022 年 4 月的枯水期,查帕拉湖中检测到的微塑料平均浓度最高(2.35 微克/升),比 2022 年 7 月的雨季浓度(1.8 微克/升)高出 0.25 微克/升,2022 年 4 月的沉积物浓度(219 微克/千克)也高于 2022 年 7 月的浓度(210 微克/千克)。这项研究凸显了微塑料对查帕拉湖的严重污染,强调了采取紧急措施管理塑料废物并减轻其对水生生态系统的环境影响的必要性。实践点:对查帕拉湖的微塑料污染情况进行了评估。每个区域的微塑料分布情况各不相同。发现重金属锇、碲和铑与微塑料有关。本研究还发现了聚合物。
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Microplastic evidence assessment from water and sediment sampling in a shallow tropical lake.

Microplastics (MPs) severely threaten inland waterbodies due to the direct impact of human activities. In the present study, spatial and temporal patterns of MPs in a shallow tropical lake were assessed, describing their size, morphology, and polymer types. Water and sediment samples were collected from Lake Chapala during three seasons, and MPs were quantified with a stereomicroscope. The structure, elemental composition, and polymeric composition were determined via environmental scanning electron microscopy and Fourier transform infrared spectroscopy. The highest average concentration of microplastics in Lake Chapala was detected during the low-water period in April 2022 (2.35 items/L), exceeding the July 2022 rainy season concentration (1.8 items/L) by 0.25 items/L, and sediment concentrations were also higher in April 2022 (219 items/kg) compared to July 2022 (210 items/kg). This study highlights the significant pollution of Lake Chapala with microplastics, emphasizing the need for urgent measures to manage plastic waste and mitigate its environmental impact on aquatic ecosystems. PRACTITIONER POINTS: Microplastic contamination was evaluated in Lake Chapala. The distribution profiles of microplastics were different in each area. Heavy metals osmium, tellurium, and rhodium were found associated with the PMs. Polymers were found in this study.

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来源期刊
Water Environment Research
Water Environment Research 环境科学-工程:环境
CiteScore
6.30
自引率
0.00%
发文量
138
审稿时长
11 months
期刊介绍: Published since 1928, Water Environment Research (WER) is an international multidisciplinary water resource management journal for the dissemination of fundamental and applied research in all scientific and technical areas related to water quality and resource recovery. WER''s goal is to foster communication and interdisciplinary research between water sciences and related fields such as environmental toxicology, agriculture, public and occupational health, microbiology, and ecology. In addition to original research articles, short communications, case studies, reviews, and perspectives are encouraged.
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