Microplastics in Soils of the Thala Hills, East Antarctica

IF 1.4 4区农林科学 Q4 SOIL SCIENCE Eurasian Soil Science Pub Date : 2024-03-01 DOI:10.1134/s1064229323603025

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Abstract

For the first time, using the example of the Vecherny Oasis (Thala Hills, Enderby Land), data on the content of microplastic particles (<5 mm) in the soils of East Antarctica were obtained. Seven samples taken from a depth of 0–15 cm were analyzed. Two soil fractions (<1 mm and 1–5 mm) were studied in triplicate (42 individual samples). The method for isolating microplastic particles included soil sieving, density separation in a zinc chloride solution, centrifugation, vacuum filtration, and microscopic analysis. For filtration, glass fiber filters with pore diameter of 1.6 µm were used. Quantification of microplastic particles was carried out using a microscope, digital camera, and appropriate software. Microplastic particles were present in all the analyzed samples. Their quantity varied from 66 to 1933 particles/kg dry soil. In most cases, particles <1 mm predominated (70–100% of all particles). The share of fibers reached 70%; the share of fragments, 30%; plastic films were found sporadically. There was no definite allocation of the increased number of microplastic particles to particular infrastructure facilities, which may be a consequence of the influence of other factors, including local and long-distance transfer of microplastics.

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南极洲东部塔拉山土壤中的微塑料

摘要首次以 Vecherny 绿洲（恩德比大陆塔拉山）为例，获得了有关南极洲东部土壤中微塑料颗粒（5 毫米）含量的数据。分析了从 0-15 厘米深处采集的七个样本。对两个土壤组分（1 毫米和 1-5 毫米）进行了一式三份的研究（42 个样本）。分离微塑料颗粒的方法包括土壤筛分、氯化锌溶液密度分离、离心、真空过滤和显微分析。过滤时使用了孔径为 1.6 微米的玻璃纤维过滤器。使用显微镜、数码相机和适当的软件对微塑料颗粒进行定量。所有分析样本中都含有微塑料颗粒。其数量从 66 到 1933 微粒/千克干土不等。在大多数情况下，1 毫米的颗粒占绝大多数（占所有颗粒的 70-100%）。纤维所占比例达到 70%；碎片所占比例为 30%；塑料薄膜零星存在。微塑料颗粒数量的增加并没有明确地归因于特定的基础设施，这可能是其他因素影响的结果，包括微塑料的本地和远距离转移。

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

Eurasian Soil Science 农林科学-土壤科学

CiteScore

2.70

自引率

35.70%

发文量

137

审稿时长

12-24 weeks

期刊介绍： Eurasian Soil Science publishes original research papers on global and regional studies discussing both theoretical and experimental problems of genesis, geography, physics, chemistry, biology, fertility, management, conservation, and remediation of soils. Special sections are devoted to current news in the life of the International and Russian soil science societies and to the history of soil sciences. Since 2000, the journal Agricultural Chemistry, the English version of the journal of the Russian Academy of Sciences Agrokhimiya, has been merged into the journal Eurasian Soil Science and is no longer published as a separate title.