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Influence of Great Lakes Water Composition on Atmospheric Aerosol Emissions
Andrew Ault, Kerri Pratt, Nate May, Jessica Axson, Isabel Colon-Bernal, Alexa Watson
Ault & Pratt
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Photo Credit: Dave Sandford
Ault & Pratt
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Fundamental Characterization
Prior Evidence for Lake Spray Aerosol
Chung et al. 2011
Next: Mobile Laboratory
Next: HAB Samples
Direct Evidence of Lake Spray Aerosol
July 2015
Integrating Lab and Field
Fundamental Characterization of Aerosol Generated from Simulated Lake Water
Lake Spray Aerosol Generator
Generated Bubbles
Ault & Pratt
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Ion Concentration: Ocean vs. Lake
May et al. in prep
Quick Peak During a Wave Event on Lake Michigan Shows a Distinct Class of Lake
Generated Particles
Ault & Pratt
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Field Study Site: Van Buren State Park SEM-EDX of Field Particles from Lake
Single Particle Mass Spectrum of Lab-Generated Particle from
Lake Michigan Water
Markers for Biological Activity
Axson et al. in prep
Strong Agreement between Aerosol from Lake Michigan Water and Salt Standards
Incr
easin
g Sa
linity
Increasing Bubble Size
Bubble Size Distributions
Ault & Pratt
Groups
Aerosol Size Distributions
SEM
Bubble Images
May et al. in prep
Next Steps: Mobile Laboratory for Full Ambient Sampling & Analysis of Aerosols
Generated from HABs The Big Question: What
Do The Organics Tell Us? Mobile Laboratory for Housing State-of-the-Art Suite of Instrumentation
Ault & Pratt
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Questions?
Ault Group
EHS Chemistry Photo Credit: Dave Sandford
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