Sulfuric Acid Droplet Formation and Growth in the Stratosphere After the 1982 Eruption of El Chichón

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Science  21 Oct 1983:
Vol. 222, Issue 4621, pp. 325-327
DOI: 10.1126/science.222.4621.325


The eruption of El Chichón Volcano in March and April 1982 resulted in the nucleation of large numbers of new sulfuric acid droplets and an increase by nearly an order of magnitude in the size of the preexisting particles in the stratosphere. Nearly 107 metric tons of sulfuric acid remained in the stratosphere by the end of 1982, about 40 times as much as was deposited by Mount St. Helens in 1980.