对土耳其土壤中不同土地用途下的微塑料积累的评估
Muhittin Onur Akca1, Sedat Gündoğdu2, Hanife Akca1
1Ankara University, Faculty of Agriculture, Department of Soil Science and Plant Nutrition, 06110 Ankara, Türkiye; Institute of Science and Technology, Niigata University, 950-2181 Niigata, Japan.
The Science of the total environment
|November 20, 2023
概括
农业土壤中的微塑料 (MP) 污染比城市土壤高. 土壤特性显著影响MP的丰富性和大小,突出地利用对污染的影响.
科学领域:
- 环境科学 环境科学
- 土壤科学 土壤科学
- 生态毒理学 生态毒理学
背景情况:
- 微塑料 (MP) 污染是全球土壤生态系统日益关注的问题.
- 目前对MP水平和土壤中的影响因素的理解仍然有限.
- 据怀疑,土地利用做法会对MP的发生和分布产生重大影响.
研究的目的:
- 调查农业和城市土壤中的微塑料污染水平.
- 描述不同土地使用中的MPs的数量,形状,大小,颜色和类型.
- 为了确定土壤特性和MP特征之间的关系.
主要方法:
- 分析了土耳其55个农业和城市用地土壤样本.
- 基于丰富度,形状,尺寸,颜色和聚合物类型的微塑料的表征.
- 主要成分分析 (PCA) 的应用,以将土壤特性与MP数据相关联.
主要成果:
- 在农业土壤中,微塑料的丰富度 (192.7颗颗粒kg-1) 比城市土壤 (127.3颗颗粒kg-1) 高.
- 纤维和小于1000微米的颗粒是两种土地用途中占主导地位的MP类型,主要是聚乙烯.
- 像pH值,有机物质和质地等土壤特性是MP丰度和大小的关键决定因素.
结论:
- 土地利用对微塑料污染水平和土壤特征产生重大影响.
- 与城市环境相比,农业实践有助于更高的微塑料积累.
- 土壤的物理化学特性在陆地生态系统中微塑料的命运和运输中起着至关重要的作用.
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