Dear Dr. Osada,

I highly appreciate your careful response to the referee reports and revision of your manuscript. I have a few further comments. Please find them in the attached document, together with a list of suggested technical corrections.
After all comments have been addressed satisfactorily, I will be happy to accept your manuscript for publication in ACP.

Best regards
Barbara Ervens

Dear Kazuo Osada,

I appreciate the careful revision of your manuscript. All but one changes have been satisfactorily addressed and I will be happy to accept the manuscript for publication in ACP after the last remaining has been properly resolved:
As mentioned in my previous comments, it is mandatory in particular for Measurement Reports that ALL data and materials underlying reported findings are reported. I could only find the NHx data in your supplement. I strongly suggest that you upload the other data that are displayed in Figures 2-8 to a suitable repository (see example links below) or make them easily accessible otherwise. Please find more details and guidelines on data accessibility below.

Sincerely
Barbara Ervens

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https://www.atmospheric-chemistry-and-physics.net/for_authors/manuscript_preparation.html

Data sets: Authors are requested to follow our data policy including

- the deposit of research data (i.e. the material necessary to validate the research findings) that correspond to journal articles in reliable FAIR-aligned data repositories that assign persistent identifiers (preferably digital object identifiers (DOIs)). Suitable repositories can be found at https://www.re3data.org/;

- the proper citation of data sets in the text and the reference list (see section references) including the persistent identifier. For data sets hosted on GitHub, authors are kindly asked to issue a DOI through Zenodo and include this DOI in the reference list;

- the inclusion of a statement on how their underlying research data can be accessed. This must be placed in the section "Data availability" at the end of the manuscript before the acknowledgements. If the data are not publicly accessible, a detailed explanation of why this is the case is required (e.g. applicable laws, university and research institution policies, funder terms, privacy, intellectual property and licensing agreements, and the ethical context of the research);

- the provision of unrestricted access to all data and materials underlying reported findings for which ethical or legal constraints do not apply.

Dear Kazuo Osada,

many thanks for addressing the last remaining comment on your manuscript. I am happy to accept it for publication in ACP.

Best regards
Barbara Ervens