Nadine Borduas-Dedekind

Nadine’s research focuses on understanding the fate of organic molecules in the atmosphere with implications for air quality and climate. Her research team uses field-deployable mass spectrometers, aerosol instruments and cloud chambers to study the fate of pollutants in the air that we breathe. For example, her team studies wildfire smoke, termed brown carbon, to determine how atmospheric biomass burning generates oxidants and nucleates clouds.

Relevant papers from my group on atmospheric bioproducts/biomass/brown carbon:

• Bogler, S. and Borduas-Dedekind, N.: Lignin’s ability to nucleate ice via immersion freezing and its stability towards physicochemical treatments and atmospheric processing, Atmospheric Chem. Phys., 20, 14509–14522, https://doi.org/10.5194/acp-20-14509-2020, 2020.
• Bogler, S., Daellenbach, K. R., Bell, D. M., Prévôt, A. S. H., El Haddad, I., and Borduas-Dedekind, N.: Singlet Oxygen Seasonality in Aqueous PM10 is Driven by Biomass Burning and Anthropogenic Secondary Organic Aerosol, Environ. Sci. Technol., 56, 15389–15397, https://doi.org/10.1021/acs.est.2c04554, 2022.
• Borduas-Dedekind, N., Ossola, R., David, R. O., Boynton, L. S., Weichlinger, V., Kanji, Z. A., and McNeill, K.: Photomineralization mechanism changes the ability of dissolved organic matter to activate cloud droplets and to nucleate ice crystals, Atmospheric Chem. Phys., 19, 12397–12412, https://doi.org/10.5194/acp-19-12397-2019, 2019.
• Borduas-Dedekind, N., Nizkorodov, S., and McNeill, K.: UVB-irradiated Laboratory-generated Secondary Organic Aerosol Extracts Have Increased Cloud Condensation Nuclei Abilities: Comparison with Dissolved Organic Matter and Implications for the Photomineralization Mechanism, Chim. Int. J. Chem., 74, 142–148, https://doi.org/10.2533/chimia.2020.142, 2020.
• Manfrin, A., Nizkorodov, S. A., Malecha, K. T., Getzinger, G. J., McNeill, K., and Borduas-Dedekind, N.: Reactive Oxygen Species Production from Secondary Organic Aerosols: The Importance of Singlet Oxygen, Environ. Sci. Technol., 53, 8553–8562, https://doi.org/10.1021/acs.est.9b01609, 2019.
• Miller, A. J., Brennan, K. P., Mignani, C., Wieder, J., David, R. O., and Borduas-Dedekind, N.: Development of the drop Freezing Ice Nuclei Counter (FINC), intercomparison of droplet freezing techniques, and use of soluble lignin as an atmospheric ice nucleation standard, Atmospheric Meas. Tech., 14, 3131–3151, https://doi.org/10.5194/amt-14-3131-2021, 2021.

Research Group website: www.atmoschemgroup.org