ISSN:
1573-5117
Keywords:
calcium
;
bicarbonate
;
sulphate
;
acidity
;
Rhine
;
Rhone
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract Data on the chemical composition of the hard water rivers Rhine and Rhone, published elsewhere, are stored in a new data bank, RRQUE. In this paper the seasonal variation in pH and concentrations of calcium, bicarbonate and sulphate at 7 stations in the Rhine and 7 in the Rhone are described. The concentrations of calcium, bicarbonate and sulphate show important increases with increasing distance from the source. In both rivers acidification gradually occurs downstream and is thought to be caused by the decomposition of disposed organic matter. It is shown that the normal seasonal patterns of these 4 chemical variables are negated by anthropogenic effects.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00008380
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