So the yellow dust that came with the wind and rain may have been pollen, rather than some sulphur compound. In that case, the odors would likely be sewer originated, but I have smelled sewer odors before and this did not seem to match.

I do recall being in #Baton_Rouge #LA and smelling this. That time, even the tap water was yellowish. Yet another reason to drink bottled water instead. https://nu.federati.net/attachment/289833