Figure 6.

The influence of monoterpene chemical diversity on SOA mass yields. This figure shows Odum theoretical and observed SOA mass yields for the entire data-set. In (a) Odum theoretical yield was calculated assuming all terpenes had α-pinene yields and in (b) Odum theoretical yield was calculated assuming the yields were a linear addition of α-pinene yields for monoterpenes and β-caryophyllene yields for sesquiterpenes. (c) The range of SOA mass yields from oxidation of five different monoterpene standards that represent the major compounds emitted from Scots pines. Lines shown in (c) are Odum fits to the data.