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Heterogeneous Uptake of HNO3 on CaCO3: Determination of the Gas-Particle Reaction Probability as Function of Relative Humidity


EMSL Project ID
25609

Abstract

The proposed work will provide an accurate measurement of the heterogeneous reaction probability for HNO3 on CaCO3 and its dependence on relative humidity. The value of γHNO3 (uptake coeficcient) determined from this work can then be used in atmospheric chemistry models to better assess the impact of heterogeneous reactions on mineral dust surfaces on the overall chemical balance of the atmosphere.

Project Details

Project type
Large-Scale EMSL Research
Start Date
2007-06-01
End Date
2009-09-30
Status
Closed

Team

Principal Investigator

Vicki Grassian
Institution
University of Iowa

Team Members

Olga Laskina
Institution
University of Iowa

Elizabeth Gibson
Institution
University of Iowa

Jeremy Cain
Institution
University of Dayton Research Institute

Yong Liu
Institution
University of California, San Diego

Alexander Laskin
Institution
Purdue University

Hai Wang
Institution
Stanford University

Related Publications

Liu Y, and A Laskin. 2009. "Hygroscopic Properties of CH3SO3Na, CH3SO3NH4, (CH3SO3)2Mg and (CH3SO3)2Ca Particles Studied by Micro-FTIR Spectroscopy." Journal of Physical Chemistry A 113(8):1531-1538.