Sources and Isotopic Composition of Atmospheric Sulfur

See allHide authors and affiliations

Science  29 Dec 1961:
Vol. 134, Issue 3496, pp. 2102-2104
DOI: 10.1126/science.134.3496.2102-a


In nonindustrial areas the prime source of SO--4 in rain and snow is atmospherically oxidized H2S that is produced predominately along coastal belts by anaerobic bacteria. The δ S34 analyses of atmospheric SO--4 vary from +3.2 to +15.6 per mil in contrast to +20.7 per mil for sea water SO--4. Contrary to previous studies based on Cl-/SO--4 ratios, sea spray SO--4 is a minor source.