ultrafine particle

https://doi.org/10.1351/goldbook.14401
Particle in air of aerodynamic diameter \(\pu{\lt 0.1 \upmu m}\).
Note: The fraction of the air particulates referred to as ultrafines is often referred to as the \(\pu{PM_{0.1}}\) fraction.
Source:
PAC, 2010, 82, 679. (Explanatory dictionary of key terms in toxicology: Part II (IUPAC Recommendations 2010)) on page 720 [Terms] [Paper]
Citation: 'ultrafine particle' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.14401 RIS BibTex EndNote
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