June 2, 2025, 14:00 CET

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with

Prof. Allison Steiner

Professor of Atmospheric Sciences, Department of Climate and Space Sciences and Engineering &
Department of Earth and Environmental Sciences, University of Michigan

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Online Seminar via Zoom
Link and password upon request
Please write an e-mail to:?seminar.umweltmedizin@med.uni-
augsburg.de

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Abstract:

Atmospheric aerosol particles are an important component of air pollution and can influence the
Earth's climate system. This talk will focus on emissions of one type of primary biological aerosol
particle, pollen, and its fate in the atmosphere. Once in the atmosphere, pollen grains can rupture
and create smaller, sub-pollen particles that can influence cloud formation and human health. New
pollen emission models quantify the release of pollen to the atmosphere, and incorporation of these
emissions in atmospheric models can provide insights into how pollen interacts with clouds and
influences precipitation. I’ll discuss the atmospheric processing of pollen, its role in cloud formation,
and how these feedbacks between the terrestrial biosphere and the atmosphere can influence
climate and human health.