Dear authors,

Thank you for your revised manuscript. One of the reviewers had two more major points which should be clarified. It is probably not much work but it should be thoroughly done before we can accept your manuscript.

Kind regards

Paul.

Dear authors,

Thank you for your revisions. The manuscript is almost ready for publication in ACP after a few minor details have been clarified and/or changed.

Page 2, line 28: Please change "contribute to aerosol mass production but also alter the" to "contributes to aerosol mass production but also alters the"

Page 7, line 7: Please change "was ten of times" to "was around ten times"

Page 8, line 5: Please add which meteorological data you used for the HYSPLIT model.

In Figure 3 (last panel) you show that you receive a linear relationship if you exclude certain datapoints. However, I see no discussion of this in the text. Is this justified? Is it to be expected?

In Figure 6, you are presenting ellipses which are suppose to represent the "confidence coefficient of 99%". Could you please give a reference on what this actually parameter means.

Page 19, line 1: Please remove the "was" after "fraction".

Figure 10: What particle density did you use to illustrate the mass size distributions? I could not find this number in the text.

Concerning the data availability: Copernicus requests that all data should be made available on reliable (public) data repositories to assure open and reproducible science. There are numerous accessible databases available. If the data are not publicly accessible, a detailed explanation of why this is the case is required. Please consult https://www.atmospheric-chemistry-and-physics.net/about/data_policy.html

Kind regards

Paul Zieger.

Dear authors,

Thank you for your final corrections. Concerning your response about the data availability, I would still encourage you to store the data behind your work on a public repository (see guidelines https://www.atmospheric-chemistry-and-physics.net/about/data_policy.html). This best practice is a newly evolved and important aspect of science to ensure open and reproducible science.

Kind regards

Paul Zieger.