Sulfate Anion (SO₄^2-) - The sulfate anion in the atmosphere is the result of the oxidation of sulfur dioxide (SO₂). The sulfate anion is water soluble and is removed from the atmosphere through precipitation.
[Analytica Chimica Acta, v.217, 1989, p.135-147]
[Biochimica et Biophysica Acta (BBA) - Biomembranes, v.646, 1981, p. 88-98]
Atmospheric Chemistry Glossary