We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Sulfur and Strontium Isotope Composition of the Llobregat River (Ne Spain): Tracers of Natural and Anthropogenic Chemicals in Stream Waters.
- Authors
Soler, A.; Canals, A.; Goldstein, S. L.; Otero, N.; Antich, N.; Spangenberg, J.
- Abstract
The use of sulfur and strontium isotopes as tracers for the source/s of water contaminants have been applied to the water of the Llobregat River system (NE Spain). Surface water samples from June 1997 were collected from the Llobregat River and its main tributaries and creeks. The chemistry of most stream waters are controlled mainly by the weathering of Tertiary chemical sediments within the drainage basin. The largest variation in δ34S values were found in the small creeks with values ranging from –9.9 to 15‰, whilst in the main river channels values ranged from 6.3 to 12.4‰. The 87Sr/86Sr ratio for dissolved strontium ranged from 0.70795 for a non-polluted site to 0.70882 for a polluted one. Most of the waters with high NO3 and low Ca/Na ratio converge to the same 87Sr/86Sr value, pointing to dominant pollutant end member contribution or a mixing of pollutants with an isotopic composition around 0.7083–0.7085. Although the concentration of the natural inputs in the river for sulfate and strontium are high, as a result of the sulfate outcrops within the geology of the basin, their isotopic characteristics suggest that they can be used as a discriminating device in water pollution problems. However to establish the detailed characteristics of the isotopes as geochemical tools, specific high-resolution case studies are necessary in small areas, where the inputs are well known.
- Subjects
LLOBREGAT River (Spain); SPAIN; SULFUR; STRONTIUM; ALKALINE earth metals; WATER pollution; SANITARY engineering
- Publication
Water, Air & Soil Pollution, 2002, Vol 136, Issue 1-4, p207
- ISSN
0049-6979
- Publication type
Article
- DOI
10.1023/A:1015231810548