Scholarlink

<p>Microplastics are an emerging class of contaminants that are widespread in the environment. While studies on airborne microplastics are rapidly increasing, the lack of standardised sampling and analysis methods is hindering progress towards accurately quantifying their global distribution. This study used existing analytical methodologies to understand the variability in identifying and quantifying airborne microplastics. High-volume aerosol samples were collected at a remote site in New Zealand and were analysed by micro-Fourier transform infrared spectroscopy, micro-Raman spectroscopy, Nile red staining combined with fluorescence microscopy, pyrolysis-gas chromatography/mass spectrometry and thermal desorption-proton transfer reaction-mass spectrometry, with all methods reporting different concentrations and polymer types. No particles were larger than 100&#xa0;µm, and 98% of particles were smaller than 10&#xa0;µm, highlighting the importance of methods that can analyse sub-10&#xa0;µm particles. This study highlights the need for caution when comparing airborne microplastic datasets analysed using different methods.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Comparative assessment of five analytical methods for airborne microplastics highlights importance of identifying sub-\(10~\upmu \hbox {m}\) methods

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年5月17日

查看全文
  • Alex Aves,
  • Anna MacDonald,
  • Sebastian Naeher,
  • Dušan Materić,
  • Deonie Castle,
  • Perry Davy,
  • Sally Gaw,
  • Laura E. Revell

摘要

Microplastics are an emerging class of contaminants that are widespread in the environment. While studies on airborne microplastics are rapidly increasing, the lack of standardised sampling and analysis methods is hindering progress towards accurately quantifying their global distribution. This study used existing analytical methodologies to understand the variability in identifying and quantifying airborne microplastics. High-volume aerosol samples were collected at a remote site in New Zealand and were analysed by micro-Fourier transform infrared spectroscopy, micro-Raman spectroscopy, Nile red staining combined with fluorescence microscopy, pyrolysis-gas chromatography/mass spectrometry and thermal desorption-proton transfer reaction-mass spectrometry, with all methods reporting different concentrations and polymer types. No particles were larger than 100 µm, and 98% of particles were smaller than 10 µm, highlighting the importance of methods that can analyse sub-10 µm particles. This study highlights the need for caution when comparing airborne microplastic datasets analysed using different methods.