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复合材料中的微塑料的量化和聚合物特性及其在生菜中的积累

Aamna Naeem¹, Muhammad Ansar Farooq², Muhammad Shafiq³

¹Institute of Environmental Sciences and Engineering (IESE), School of Civil and Environmental Engineering (SCEE), National University of Sciences and Technology (NUST), Islamabad, 44000, Pakistan.

|June 4, 2024

概括

有机肥料可以将微塑料 (MP) 转移到粮食作物中. 在受污染的堆肥中种植的生菜,特别是城市固体废物堆肥 (MSWC),显示出显著的MP积累和增长减少,对人类健康构成风险.

科学领域:

环境科学环境科学
食品安全食品安全
材料科学材料科学材料科学

背景情况:

有机肥料越来越多地被认为是微塑料 (MP) 污染农业系统的途径.
食品链中的微塑料对人类健康和生态系统完整性构成潜在风险.

研究的目的:

量化和描述不同类型的堆肥中的微塑料.
为了研究微塑料从堆肥转移到生菜 (Lactuca sativa).
评估微塑料污染对生菜生长和生理参数的影响.

主要方法:

分析了8个堆肥样本的微塑料丰富度,大小,形状和聚合物类型.
在受污染的堆肥上种植生菜,以研究微塑料的吸收.
测量生菜生长参数 (叶子长度,数量,新鲜和干燥重量) 和生理指标 (膜稳定性指数,相对水含量).

主要成果:

堆肥中微塑料的丰富程度在3810至16530MP/kg之间,其中市政固体废物堆肥 (MSWC) 的度最高.
较小的MP (<100微米),碎片和纤维占主导地位,主要由聚乙烯 (PE),聚烯 (PP) 和聚乙烯四甲 (PET) 组成.
在MSWC种植的生菜表现出最高的MP积累和显著减少生长和生理健康.

结论:

有机肥料,特别是MSWC,是粮食作物中微塑料污染的重要来源.
菜吸收的微塑料会影响植物健康,使得来自高度污染的来源的产品可能不安全食用.
规范堆肥中的塑料含量对于减轻生态系统和人类健康风险至关重要.

关键词:

在ATR-FTIR中使用.微塑料是一种微塑料.有机肥有机肥有机肥塑料塑料的塑料的拉曼光谱法拉曼光谱法拉曼光谱法这就是SEM SEM.

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