E-AIM Tutorial

Lesson 3: Gas/aerosol Partitioning in a Simple System


In earlier lessons we examined single electrolyte solutions and their water content and phase state (solid or liquid) as a function of relative humidity. We used the simple version of E-AIM Model III, which only considers species in the particle phase. In this lesson, we will examine partitioning between the condensed and vapour phases.


Before starting, ensure that this browser window occupies only the left half of your screen. You should leave enough space for another browser window where you can enter data into E-AIM and read the results. If your screen is too small for two windows, print out this tutorial and use this window to enter data and read E-AIM's results. In these lessons we assume that you will have two browser windows open.

Select this link to open a second browser window containing the data input page for "comprehensive" calculations using Model III (http://www.aim.env.uea.ac.uk/aim/model3/model3b.php). Arrange the windows on your screen so that both are visible and the left window contains this text.

The Lesson

This consists of the four sets of calculations described in the links below, which should be done in the order listed.

   a.  A gas/particle system at a fixed relative humidity
   b.  Reducing the relative humidity
   c.  Evaporation of a liquid aerosol
   d.  Evaporation of a solid aerosol


You have completed Lesson 3, and learned that:

Now proceed to Lesson 4, which examines the properties of aerosol solutions containing more than one electrolyte.