You searched for: “effluvia
effluvium (s) (noun), effluvia, effluviums (pl)
1. A foul-smelling outflow or vapor; especially, a gaseous waste.
2. An unpleasant smell or harmful fumes usually given off by waste or decaying matter.
3. A slight or invisible exhalation or vapor; especially, one that is disagreeable or noxious.