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Updated: Sep 27, 2025
Composition and Distribution Analysis of Bioaerosols Under Different Environmental Conditions
Published on: January 7, 2019
Recent Developments in the Determination of PM2.5 Chemical Composition
Susu Pan1, Yanting Qiu2, Ming Li3
1Division of Ecology Environment and Energy Resources, Beijing Institute of Metrology, Beijing, 100012, China.
Fine particulate matter (PM2.5) analysis methods are reviewed, detailing techniques for inorganic elements, ions, carbon, and organic compounds. The study discusses analytical accuracy improvements using reference materials for better PM2.5 characterization.
Area of Science:
- Environmental Science
- Analytical Chemistry
Background:
- Fine particulate matter (PM2.5) is a major air pollutant.
- Understanding PM2.5 chemical composition is crucial for health and environmental impact assessments.
Purpose of the Study:
- To review and compare analytical methods for determining PM2.5 chemical composition.
- To discuss the role of reference materials in enhancing analytical accuracy.
Main Methods:
- X-ray fluorescence, ICP-AES, ICP-MS for inorganic elements.
- Ion chromatography for water-soluble ions.
- Carbon analyzers for EC/OC, GC-MS/LC-MS for organic compounds.
Main Results:
- Each analytical method has specific merits and drawbacks.
- Reference materials significantly improve the accuracy of PM2.5 chemical composition determination.
Conclusions:
- A comprehensive understanding of analytical techniques is essential for accurate PM2.5 monitoring.
- Development and use of reference materials are key to advancing PM2.5 analysis.
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