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Science 20 June 1980:
Vol. 208. no. 4450, pp. 1368 - 1370
DOI: 10.1126/science.208.4450.1368
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Articles

Stratospheric Sulfuric Acid Layer: Evidence for an Anthropogenic Component

D. J. HOFMANN 1 and J. M. ROSEN 1

1 Department of Physics and Astronomy, University of Wyoming, Laramie 82071

Recent measurements of small aerosol particles in the stratosphere over Laramie, Wyoming, indicate low-concentration background conditions. A comparison of measurements made some 20 years ago with the present background concentration reveals the possibility of an increase of 9 percent per year. Since the aerosol particles are predominantly sulfuric acid droplets which form in the stratosphere from tropospheric sulfur-containing gases, such an increase may be related to man-made sulfur emissions.

Submitted on January 21, 1980
Revised on March 27, 1980


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Increase in the Stratospheric Background Sulfuric Acid Aerosol Mass in the Past 10 Years.
D. J. Hofmann (1990)
Science 248, 996-1000
   Abstract »    PDF »
Measurements of Cloud Condensation Nuclei in the Stratosphere Around the Plume of Mount St. Helens.
C. F. Rogers, C. F. ROGERS, J. G. HUDSON, and W. C. KOCMOND (1981)
Science 211, 824-825
   Abstract »    PDF »


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