Line 112-113: equations in PDF do not come out well; appear elevated. I find that notation is unnecessarily complicated in the equations on this page but if this is what people use in this community, it is fine.

Line 130: End -> At the end

Line 174: “ppb” refers to par per billion by weight in solution? Atmospheric chemistry readers may confuse it with part per billion by volume, so perhaps it is best to define.

Line 199: equation number missing

Line 259: variant -> varied

Figure 2: I would make points from your study a bit more prominent (they are hard to notice against bright colors of the rectangular regions)

The supporting information file is too short to justify its existence. It only consists of one page of text, which overlaps partly with the info reported in the main text, and one Table S1. I suggest that table S1 should move to the main text and the supporting information file should be eliminated. Some people use Appendix at the end of the paper instead of supporting information section; this is also a possibility to consider.