轮胎衍生的颗粒在沿海和湖泊沉积物中的分布和积累模式
Kosuke Tanaka1, Atsuko Amano2, Takuya Itaki3
1Material Cycles Division, National Institute for Environmental Studies, Onogawa 16-2, Tsukuba, Ibaraki 305-8506, Japan.
Water research
|July 25, 2025
概括
在大多数日本沉积物中发现了主要的微塑料来源 - - 轮胎和道路磨损颗粒 (TRWP),通常超过安全水平. TRWP运输与陆地泥和有机物有关,影响了污染控制战略.
科学领域:
- 环境科学 环境科学
- 生态毒理学 生态毒理学
- 地质化学 地质化学
背景情况:
- 轮胎和道路磨损颗粒 (TRWP) 是全球微塑料的主要来源.
- TRWP进入水生生态系统,对水生生物构成潜在风险.
- 了解TRWP的分发和运输对于环境管理至关重要.
研究的目的:
- 在日本水生沉积物中量化TRWP度.
- 评估TRWP带来的生态风险.
- 调查TRWP和沉积物特性之间的关系,以获取运输洞察力.
主要方法:
- 在来自日本11个水体的36个沉积物样本中分析TRWP.
- 利用热解气体染色学/质谱学用于TRWP的识别和量化.
- 检查了TRWP度和沉积物特征 (泥含量,TOC,terroOC) 之间的相关性.
主要成果:
- 在36个样本中,在32个样本中检测到TRWP,其度高达4260μg/g干重.
- 在30个地点,TRWP水平超过了预测的无效度,这表明生态风险.
- 在TRWP和泥含量,TOC和terroOC之间发现了显著的相关性,特别是在积累沉积物中.
结论:
- TRWP在日本水生沉积物中广泛存在,并构成生态风险.
- 通过陆地泥和有机物质运输TRWP.
- 沉积物特性可以表明TRWP分布,有助于运输建模和污染控制.
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