Dear Authors,

thanks for your detailed response to the referee comments and the extensive revision of your manuscript. There are a few things that should be corrected prior to uploading the final files for publication (see below; page and line numbers refer to your marked-up manuscript that was attached to the response to the reviewers).
After these changes, I will be happy to accept your paper for publication in ACP.

Best regards
Barbara Ervens

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p. 7, l. 11 – 19: This sentence would be clearer if split into two. I think mostly the insert ‘not as levoglucosan’ (note ‘levoglucosan’ is misspelled!) is interrupting the flow.

p. 17, l. 19: constrains --> constraints

p. 22, l. 31: reports --> report

p. 22, 34: colder temperature --> lower temperatures (only materials or gases etc can be ‘cold’ whereas temperature is a value that is high or low, respectively)

p. 24, l.22: ‘See Supplemental Information for details’ can be omitted.

p. 26, l. 31: should ‘activates’ by ‘activated’?

p. 28, l. 35: Is ‘attach’ the right verb here? Do you mean ‘agree’?

p. 32, l. 10: Which table are you referring to here? 4S2?

p. 32, l. 22: form --> from

p. 32, l. 24: week T-dependent --> weak T-dependence of

All subsections in Section 4.3: It would help if you spell out at the beginning of each section (or in Table 2) the different instruments as you did for INKA in Section 4.3.10.

p. 35, l. 22: closest to the results…

p. 36, l. 14: warm temperature --> high temperatures

SI p14, l. 12: There seems to be a verb missing (e.g., ‘occurs’ or similar)

SI, p. 21, l. 17: indicate --> indicates