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Na+/Cr- ratios in rain across the USA, 1982–1986 Cover

Na+/Cr- ratios in rain across the USA, 1982–1986

Open Access
|Jan 1989

Abstract

Ratios of Na+/Cl- for annual rain collections for 178 sites in the NADP/NTN network across the USA were compared to the same ratio for sea water. 48% of the sites had ratios which were, within experimental error, the same as sea water. 32% of the sites, all in western states, had Na+/Cl- ratios greater than sea water. These higher ratios are attributed to Na+ from feldspar and clay aerosols. The remainder (20%) of the sites, with ratios less than sea water are mostly in a contiguous area composed of lower Michigan, lower Wisconsin, eastern Illinois, Indiana, Ohio, Kentucky, West Virginia, northern Virginia, Pennsylvania, New York and Massachusetts. This area coincides with the areas of highest SO2-4 and NO-3 concentrations in rain and is believed to receive imputs of Cl- from coal-fired power plants.

Language: English
Page range: 444 - 451
Submitted on: Sep 25, 1987
Accepted on: Aug 9, 1988
Published on: Jan 1, 1989
Published by: Stockholm University Press
In partnership with: Paradigm Publishing Services

© 1989 George H. Wagner, Kenneth F. Steele, published by Stockholm University Press
This work is licensed under the Creative Commons Attribution 4.0 License.