Does anyone know about how the Martian regolith and/or local environment would react to vented hydrazine or nitrogen tetroxide from a spacecraft after landing? I've spent hours trying to Google this question and come up with very little - I've attached a document that I haven't yet perused in detail; as of writing this post.Has anyone seen data, or a scientific paper on the subject? I'm wondering if either the hydrazine or more likely the nitrogen tetroxide might react to Martian regolith that might have a high concentration of perchlorates, during a post-landing propellant dump?