Interactive comment on “A new mechanism for atmospheric mercury redox chemistry: Implications for the global mercury budget” by

1. On page 2 lines 14-15, you talk about how oxidation by O3 and OH is unlikely. It is important, I think, that you bring out and discuss (or debunk, if they merit it) other oxidation/reduction mechanisms that have been proposed, including heterogeneous mechanisms. No one disputes that halogen-involving reactions are important. But there are some strong voices that claim other mechanisms may also be important, and I think it would be useful to give them consideration.