That which is exhaled, or which rises in the form of vapor, fume, or steam
exhalations from the earth or flowers
1894, Ivan Dexter, Talmud: A Strange Narrative of Central Australia, published in serial form in Port Adelaide News and Lefevre's Peninsula Advertiser (SA), Chapter II, http://gutenberg.net.au/ebooks16/1600641.txt
For a week the party watched the flood, and each day it receded to a considerable extent. A thick deposit of mud was left behind, but though the sun shone out warmly no offensive exhalations arose.