murk, effluvia, haze, foulness, morass, nothingness, anomie, sordidness, incubus, ennui, putrescence, fug, mists, stench, incoherence, purposelessness, phantasmagoria, dankness, cesspool, ether, insubstantiality, banality, netherworld, mundanity, farrago, cacophony, languor, inconsequence, flummery, cacophonic, detritus, phantasm, vacuity, specters, illogic, joylessness, vortex, solipsism, nefariousness, spume, fatalism, cynicism, rottenness, cobweb, desuetude, paranoia, reek, shapelessness, grandiloquence, reverie, lassitude, excremental, unreality, lunacies, muck, tawdriness, unnamable, insidiousness, mendacity, mustiness, maw, cesspit, ectoplasm, dreariness, revenant, clangor, demimonde, putrefaction, sentimentalism, drear, gunsmoke, enervation, maelstrom, whiff, dinginess, feverishness, claptrap, milieu, excrescence, malignity, redolence, brutalism, effulgence, crud, grubbiness, despond, delusion, philistinism, buncombe, sanctimony, pseudo, dystopia, mire, saturnalia, inanity, sublimity, stupor, meaninglessness, threnody, quagmire, nihilism, greyness, malady, blight, contagion, exhalations, maladies, aura, stink, distemper, smog, damp, effluvium, emanations, fog, fogs, lethargy

air pollution, ambiance, ambience, atmosphere