Probing Phase States of Individual Sub-micron Particles at Various Relative Humidity and Temperature
EMSL Project ID
50681
Abstract
The viscosity of organic aerosols is a pivotal property to predict their health and environmental impact. Viscosity influences particle growth rate, diffusivity, chemical reactivity, and impacts the long-range transport of pollutants. The viscosity of particles is strongly dependent on relative humidity and temperature. Submicron size organic aerosol dominate aerosol population, however, current techniques are limited by a narrow range of viscosity or particle size (>20µm). We propose to develop a novel platform integrated in environmental scanning electron microscope to probe viscosity of field collected individual submicron particles as a function of temperature and relative humidity.
Project Details
Start Date
2019-01-02
End Date
2021-09-30
Status
Closed
Released Data Link
Team
Principal Investigator
Team Members
Related Publications
Bhandari J., S. China, K.K. Chandrakar, G. Kinney, W. Cantrell, R.A. Shaw, and L.R. Mazzoleni, et al. 2019. "Extensive Soot Compaction by Cloud Processing from Laboratory and Field Observations." Nature Scientific Reports 9, no. 1:11824. PNNL-SA-143342. doi:10.1038/s41598-019-48143-y