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使用SP-ICP-MS在水中可提取的道路尘埃纳米颗粒中的微量金属的识别和定量

Mary-Luyza Avramescu¹, Katherine Casey², Christine Levesque²

¹Environmental Health Science and Research Bureau, HECS Branch, Health Canada, 251 Sir Frederick Banting Driveway, Ottawa, ON K1A 0K9, Canada..

The Science of the total environment

|March 15, 2024

概括

道路灰尘含有众多金属纳米粒子 (NP),在城市地区构成健康风险. 单颗粒ICP-MS有效量化这些空气中纳米粒子,帮助风险评估.

科学领域:

环境科学环境科学
分析化学分析化学
毒理学毒理学毒理学

背景情况:

道路灰尘是城市空气中的颗粒物的主要来源.
吸入超细颗粒 (UFPs) (<0.1μm) 是一个健康问题,因为潜在的转移到血液中.
在车辆发射的UFP中对金属 (化物) 的特征进行鉴定,对于了解健康影响至关重要.

研究的目的:

评估单颗粒ICP-MS (SP-ICP-MS) 在道路灰尘中量化含金属化物纳米颗粒 (NP) 的能力.
描述不同城市道路类型的道路尘埃样本中的NP类型和度.
评估SP-ICP-MS在复杂环境矩阵中快速分析NP的实用性.

主要方法:

采用抽水方法,从道路尘埃样本中分离出<1μm的微小部分.
在使用SP-ICP-MS.的超水生物上进行了多元元素分析.
确定并分类含有金属的NP的颗粒数度.

主要成果:

道路尘埃样本中含有广泛的含有金属的NP,包括高度的和.
在本地和动脉道路样本之间,NP度有所不同.
在SP-ICP-MS方法中,大多数分析元素的粒子数度的低检测极限被证实.

结论:

道路灰尘是城市环境中易于调动的,含有金属的NP的重要来源.
SP-ICP-MS是一种有效的技术,用于在复杂矩阵中快速表征和量化NP.
这些发现对城市地区的人类健康风险评估有影响,强调需要对影响NP含量的因素进行进一步研究.

关键词:

金属和金属化物.纳米颗粒纳米颗粒道路上的尘埃,就是道路上的尘埃.在SP-ICP-MS中使用SP-ICP-MS.一个粒子分析分析.

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