Construct a model of organic aerosol partitioning based on a volatility basis set with 4 bins (iterative solution is required) and model the gas-particle partitioning of the following volatility distribution in the COA range 10-1 to 104 g m-3. C*i fi 1 0.07 10 0.21 100 0.18 1000 0.55 a) Produce a partitioning plot (Xp vs. COA) showing how this set of emissions would partition at 298K as the