Dear Hans-

Thank you for submitting the revised manuscript. I think that you have answered the reviewers comments clearly and I appreciate the additional information that has been supplied to the SI.

A few quick comments from my end:

Line 735: While I appreciate that the VOC data coverage is sparse, I don't think this should be given as a reason for not including bounds for the impact that NO3-VOC reactions may have on the analysis. Is it possible to run a sensitivity test to assess how important VOCs might be in the N2O5 analysis if they were measured? For example, at what NO3 reactivity does this become an issue to the interpretation of the results.

Deposition rates: Are the deposition velocities that are compared to (for O3 and NO2) made at night? I am somewhat surprised that deposition occurs this rapidly at night for this region. I would think the same would be true for NO3 and N2O5. The N2O5 deposition velocities from Kim et al (over water) are most likely sustained by shear induced turbulence. I would expect this to go to near zero at night over land in the absence of convectively driven turbulence. How would this impact your analysis.

Kind regards-
Tim