Sulfate and Nitrate Concentrations from a South Greenland Ice Core

Authors

Paul A. Mayewski, University of Maine
W. Berry Lyons, University of New Hampshire, Durham
Mary Jo Spencer, University of New Hampshire, Durham
Mark S. Twickler, University of New Hampshire, DurhamFollow
W. Dansgaard, University of Copenhagen
B. Koci, University of Nebraska
C. I. Davidson, Carnegie-Mellon University
R. E. Honrath, Carnegie-Mellon University

Abstract

An ice core in south Greenland covering the period 1869 to 1984 was analyzed for oxygen isotopes and chloride, nitrate, and sulfate concentrations. The data show that the "excess" (nonsea-salt) sulfate concentration has tripled since approximately 1900 to 1910 and the nitrate concentration has doubled since approximately 1955. The increases may be attributable to the deposition of these chemical specis from air masses carrying North American and Eurasian anthropogenic emissions.

Department

Earth Systems Research Center

Publication Date

5-23-1986

Journal Title

Science

Publisher

Springer

Digital Object Identifier (DOI)

https://dx.doi.org/10.1126/science.232.4753.975

Document Type

Article

Recommended Citation

MAYEWSKI, P. A., LYONS, W. B., SPENCER, M. J., TWICKLER, M., DANSGAARD, W., KOCI, B., . . . HONRATH, R. E. (1986). Sulfate and Nitrate Concentrations from a South Greenland Ice Core. Science, 232(4753), 975-977. doi:10.1126/science.232.4753.975