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Updated: Jul 5, 2026
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Natural Product Discovery with LC-MS/MS Diagnostic Fragmentation Filtering: Application for Microcystin Analysis
Published on: May 31, 2019
Characterization of aerosols containing microcystin
Yung Sung Cheng1, Yue Zhou, C Mitch Irvin
1Lovelace Respiratory Research Institute, 2425 Ridgecrest, SE, Albuquerque, NM, 87111, USA; E-mails: yzhou@LRRI.org (for Yue Zhou); cirvin@LRRI.org (C. Mitch Irvin).
Marine Drugs
|May 9, 2008
Summary
Cyanotoxins like microcystins can become airborne through bubble-bursting, posing an inhalation risk. This study developed methods to sample and analyze airborne microcystins, confirming their presence in the air.
Area of Science:
- Environmental Science
- Toxicology
- Public Health
Background:
- Cyanobacterial blooms are widespread globally in freshwater and brackish environments.
- Microcystins, a class of cyclic peptide cyanotoxins, are a significant concern.
- Inhalation is a potential human exposure route to cyanotoxins, linked to respiratory symptoms during recreational activities.
Purpose of the Study:
- To evaluate sampling and analysis techniques for airborne microcystins.
- To generate microcystin-containing aerosol droplets in a laboratory setting.
- To conduct field studies deploying sampling instruments for in situ measurements.
Main Methods:
- Laboratory generation of aerosol droplets containing microcystins using a bubble-bursting mechanism.
- Collection of airborne microcystins using a high-volume impactor and an IOM filter sampler.
- Extraction and analysis of microcystins via ELISA (Enzyme-Linked Immunosorbent Assay).
Main Results:
- Waterborne cyanotoxins can be aerosolized via bubble-bursting.
- A bimodal droplet size distribution was observed, with mass median aerodynamic diameters (MMAD) of 1.4 and 27.8 µm.
- The developed sampling and analysis methods were successfully applied in a pilot field study.
Conclusions:
- The study successfully demonstrated the aerosolization of microcystins.
- Validated methods allow for the measurement of airborne microcystins in environmental samples.
- Findings support the assessment of inhalation exposure risks from cyanobacterial toxins.
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