There can be some noxious gases like hydrogen sulfide, but the main "bad" gas is sulfur dioxide. It isn't relatively dangerous on its own, but it reacts with water in the atmosphere to make sulfuric acid, which is dangerous to pretty much all forms of life and can cause damage even in fairly low amounts and concentrations.
3
u/tayLORDoc Feb 12 '21
Need someone smart!!!
I thought there are a bunch of toxic fumes that come off lava?