I am enclosing also the MS-pdf with my comments.

Actually the results are interesting, but
in order to assess if the used method is consistent, some additional details are needed.

1. As the concentrations of the smallest particles are quite high, self-coagulation may be an important mechanism both growing the particles and as a sink. Thus it is important to explain in detail how the terms CoagSink and CoagSrc (equation 1) are calculated from the size distribution data.

2. What does "convergence" on line 24 of page 18662 mean?

3. In figure 4, why do N(1.77) and N(2.03) increase before N(1.51) ?

4. Where does the empirical correction term to the Kelvin effect in equation 2 come from? Are the fitted paramaters in table 1 sensitive to the choice of the free parameter in this correction term?

5. In Nieminen et al. (2010), the size dependence of GR is such that it first decreases, then increases. So how can the local maximum (fig. 9) be in agreement with Nano-Köhler theory?

Although the MS is improved there are still some doubts.

I and the referees are still puzzled by the seemingly unphysical behaviour of GR and C_surface (Fig. S2 in your response). Would it be possible for you to sketch an example chemical composition as a function of size that results in such GR(Dp) and C_surface(Dp)?

You mention that "Nucleation activation diameter D_p,act is the size that ELVOC began to dilute the nuclei”. Does this mean that D_p,act is the size where ELVOC begins to condense on the nuclei? If yes, doesn’t this mean that other higher vapour pressure organics can also start to
condense - thus increasing GR? In Fig. S2, in contrast, GR decreases after D_p,act.

Although the MS is further improved. The key doubt is still the way how authors are using Nano-Kohler theory. In my point of view the maxima in Nano-Kohler curve is the point of activation. Also the original nano-Kohler theory takes into account solution effect.
I propose authors to revisit:
1) revisit nano-Kohler theory and also general Köhler theory, it will show nicely what does the nano_kohler maxima mean
2) revisit experimental results. There might be some inaccuracy there.

The original data is noisy. Therefore the nosiness of data and its effect on the results and conclusions should be discussed before publication.