Sentence:  She was now bending over a huge light wood blaze, with a pipe of rude structure and no small dimensions in her mouth, from which the occasional puff went forth, filling the apartment with the unpleasant <WSD>effluvia</WSD> of the vilest leaf-tobacco. 
Meaning of the word marked with <WSD> tags:  A gaseous or vaporous emission, especially a foul-smelling one.