Figure 2.

Relationship between the change (%) of organic carbon (OC, in μg C m^–3) and the measured seed aerosol acidity ([H⁺]_air nmol m^–3) for different BVOCs. The data for isoprene, α-pinene, and β-caryophellene are reproduced from Surratt et al.²³ and Offenberg et al.³⁵ The two green shades of α-pinene data are from two individual experiments with different initial conditions, as described by Offenberg et al.³⁵ The MBO data are from the present study. The determination of the error bars is discussed in the Supporting Information.