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表面下藏着什么 - - 包括TWP在内的国会议员在城市湖泊中
Marziye Shabnam Molazadeh1, Fan Liu1, Jeanette Lykkemark1
1Aalborg University, Section of Civil and Environmental Engineering, Department of the Built Environment, Thomas Manns Vej 23, 9220 Aalborg Øst, Denmark.
Environment international
|November 12, 2023
概括
微塑料 (MPs),包括轮胎磨损颗粒 (TWP),存在于丹麦城市湖泊沉积物中. 它们的分布似乎是随机的,这凸显了需要全面采样来准确量化这些环境污染物的必要性.
科学领域:
- 环境科学 环境科学
- 分析化学 分析化学
- 生态毒理学 生态毒理学
背景情况:
- 内陆湖泊是重要的生态系统和水源,但微塑料 (MP) 污染数据很少.
- 微塑料,包括轮胎磨损颗粒 (TWP),对水生环境构成越来越大的威胁.
- 了解湖泊中的MP分布对于有效的管理和缓解策略至关重要.
研究的目的:
- 在丹麦城市湖泊沉积物中量化和描述微塑料 (MP) 和轮胎磨损颗粒 (TWP).
- 调查国会议员和TWP的空间分布模式和影响因素.
- 提供数据,以便在内陆水域对PM污染作出知情决策.
主要方法:
- 从丹麦的一个城市湖收集了沉积物样本.
- 微塑料 (MP) 通过使用里埃变换红外显微光谱 (μFTIR) 识别和量化.
- 轮胎磨损颗粒 (TWP) 的质量通过热解气体染色学质谱法 (Py-GC/MS) 来确定.
主要成果:
- 平均MP丰度为279毫克千克-1 (μFTIR),其中TWP贡献19毫克千克-1 (Py-GC/MS).
- 平均MP计数度 (不包括TWP) 为11,312计数千克-1.
- MP度有显著的变化,没有明显的空间模式或与沉积物质的相关性,这表明随机分布.
结论:
- 包括TWP在内的微塑料污染存在于研究的城市湖泊沉积物中.
- MPs的随机空间分布需要广泛的抽样来准确量化.
- 这些发现有助于了解内陆湖泊中MP的发生情况,并支持缓解努力.
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