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Use of chemistry and stable sulfur isotopes to determine sources of trends in sulfate of Colorado lakes

Water, Air, and Soil Pollution

By:
, ,
DOI: 10.1007/BF00478156

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Abstract

The chemistry of lakes in the Mt. Zukel Wilderness Area (MZWA) and the Weminuche Wilderness Area (WWA) of Colorado has been monitored since 1985. The initial results indicate that changes have occurred in the chemistry of some lakes in both areas. Increased concentration of sulfate in lakes may be related to increased atmospheric deposition of sulfate or to changes of sulfate released by weathering and to changing dilution of sulfate by snowmelt. Stable S isotopes seem to be capable of separating the fraction of change in sulfate that is related to atmospheric and watershed sources. Because of the short period of record, it is not possible to determine whether the changes are part of a long-term trend or are merely natural fluctuations about some baseline.The chemistry of lakes in th Mt. Zirkel Wilderness Area (MZWA) and Weminche Wilderness Area (WWA) of Colorado has been monitored since 1985. The initial results indicate that changes have occured in the chemistry of some lakes in both areas. Increased concentration of sulfate in lakes may be related to increased atmospheric deposition of sulfateor to changes of sulfate released by weathering and to changing dilution of sulfate by snowmelt. Stable S isotopes seem to be capable of separating the fraction of change in sulfate that is related to atmospheric and watershed sources. Because of the short period of record, it is not possible to determine whether the changes are part of long-term or are merely natural fluctuations about some baseline.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Use of chemistry and stable sulfur isotopes to determine sources of trends in sulfate of Colorado lakes
Series title:
Water, Air, and Soil Pollution
DOI:
10.1007/BF00478156
Volume
67
Issue:
3-4
Year Published:
1993
Language:
English
Publisher:
Springer
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Water, Air, and Soil Pollution
First page:
415
Last page:
431
Number of Pages:
17