D. A. Tikhonova, S. G. Karetnikov, E. V. Ivanova, E. P. Shalunova
{"title":"The Vertical Distribution of Microplastics in the Water Column of Lake Ladoga","authors":"D. A. Tikhonova, S. G. Karetnikov, E. V. Ivanova, E. P. Shalunova","doi":"10.1134/s009780782370063x","DOIUrl":null,"url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The vertical distribution of microplastics in Lake Ladoga was studied under conditions of density stratification with the presence of a thermocline and under homothermal conditions. Using a pump filtration device, water samples were taken at different water layers (0–70 m) under different hydrological conditions and a comparative analysis of the concentrations of microplastic particles with a size of 60–5000 μm was carried out. Microplastic particles were analyzed using both optical microscopy and Raman spectroscopy methods. Based on the obtained data, it was concluded that under conditions of density stratification, the concentrations of microplastic particles in the thermocline and above it are increased in comparison with the underlying layers (50 ± 40.2 and 15.9 ± 13 particles/m<sup>3</sup>, respectively). Under homothermal conditions, the vertical distribution of microplastics in the surface layer and in water column is more uniform (17.3 ± 17.8 and 12.7 ± 15.6 particles/m<sup>3</sup>, respectively).</p>","PeriodicalId":49368,"journal":{"name":"Water Resources","volume":"19 1","pages":""},"PeriodicalIF":0.9000,"publicationDate":"2024-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Water Resources","FirstCategoryId":"93","ListUrlMain":"https://doi.org/10.1134/s009780782370063x","RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"WATER RESOURCES","Score":null,"Total":0}
引用次数: 0
Abstract
The vertical distribution of microplastics in Lake Ladoga was studied under conditions of density stratification with the presence of a thermocline and under homothermal conditions. Using a pump filtration device, water samples were taken at different water layers (0–70 m) under different hydrological conditions and a comparative analysis of the concentrations of microplastic particles with a size of 60–5000 μm was carried out. Microplastic particles were analyzed using both optical microscopy and Raman spectroscopy methods. Based on the obtained data, it was concluded that under conditions of density stratification, the concentrations of microplastic particles in the thermocline and above it are increased in comparison with the underlying layers (50 ± 40.2 and 15.9 ± 13 particles/m3, respectively). Under homothermal conditions, the vertical distribution of microplastics in the surface layer and in water column is more uniform (17.3 ± 17.8 and 12.7 ± 15.6 particles/m3, respectively).
期刊介绍：
Water Resources is a journal that publishes articles on the assessment of water resources, integrated water resource use, water quality, and environmental protection. The journal covers many areas of research, including prediction of variations in continental water resources and regime; hydrophysical, hydrodynamic, hydrochemical and hydrobiological processes, environmental aspects of water quality and protection; economic, social, and legal aspects of water-resource development; and experimental methods of studies.
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