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评估空气中微塑料在植物叶子上的保留:叶子形态的影响

Kushani Perera¹, Shima Ziajahromi¹, Susan Bengtson Nash²

¹Australian Rivers Institute, School of Environment and Science, Griffith University, Southport Qld, 4222, Australia.

Environmental pollution (Barking, Essex : 1987)

|February 29, 2024

概括

室内植物可以捕获空气中的微塑料 (AMP),减少人类暴露. 叶子结构影响AMP的保留,有纹理的叶子比光滑的叶子捕获更多,这表明植物在改善室内空气质量方面发挥了作用.

科学领域:

环境科学环境科学
材料科学是一种材料科学.
植物学植物学

背景情况:

空气中的微塑料 (AMP) 在室内和室外环境中普遍存在,对人类的微塑料暴露有很大影响.
需要有效的捕获AMP的方法来减轻人类的暴露.
陆地植物捕获AMP的能力在很大程度上是未知的.

研究的目的:

研究各种天然和人工植物物种的AMP捕获能力.
为了确定叶子形态对AMP保留的影响.
评估室内植物降低室内AMP度的潜力.

主要方法:

8种天然植物和2种人工植物两周暴露于AMP.
使用微里埃变换红外 (μ-FTIR) 光谱学对沉积的AMP进行表征.
在叶子消化后使用μ-拉曼光谱证实地下AMP.

主要成果:

所有测试的植物物种都保留了AMP,其度从0.02到0.87n/cm2不等.
带有的叶子的人造植物和带有三体/叶片的天然植物显示AMP保留率更高.
光滑叶的天然植物表现出最低的AMP保留率;90%的保留AMP是纤维,主要是聚乙烯二甲 (PET).

结论:

植物叶子充当空气中的微塑料的被动收集器和临时沉降器.
叶子形态,包括纹理和结构,显著影响AMP的保留.
室内植物显示出降低室内AMP水平的潜力,这需要进一步的长期研究.

关键词:

在空中运输,空中运输.室内植物室内植物叶子形态叶子形态微塑料是一种微塑料.

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