Remove aerosol phase and add aqueous phase

[boulderdaze]

Removes aerosol phase as discussed and updates it to aqueous phase

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 86.95%. Comparing base (a4b5611) to head (ce5436b).
⚠️ Report is 98 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #100   +/-   ##
=======================================
  Coverage   86.95%   86.95%           
=======================================
  Files           3        3           
  Lines          23       23           
=======================================
  Hits           20       20           
  Misses          3        3           

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