Noxious+exhalation
31reek — Synonyms and related words: BO, aerate, aerify, afterdamp, ash, ashes, atomize, bad breath, bad smell, be aromatic, be redolent of, blackdamp, bleed, blow, body odor, brand, breath, breathe, breathe out, calx, carbon, carbonate, charcoal,… …
32effluvium — /əˈfluviəm/ (say uh floohveeuhm) noun (plural effluvia /əˈfluviə/ (say uh floohveeuh) or effluviums) a slight or invisible exhalation or vapour, especially one that is disagreeable or noxious. {Latin: a flowing out} –effluvial, adjective …
33mephitis — /məˈfaɪtəs/ (say muh fuytuhs) noun 1. a noxious or pestilential exhalation, especially from the earth. 2. a noisome or poisonous stench. {Latin} …
34vapor — [vā′pər] n. [ME vapour < Anglo Fr < MFr vapeur < L vapor < IE base * wep , to give off vapors] 1. a) visible particles of moisture floating in the air, as fog, mist, or steam b) any cloudy or imperceptible exhalation, as smoke or… …