at Google ScholarTitle data
Planer-Friedrich, Britta ; Armienta, Maria A. ; Merkel, Broder J.:
Origin of arsenic in the groundwater of the Rioverde basin, Mexico.
In: Environmental Geology.
Vol. 40
(2001)
Issue 10
.
- pp. 1290-1298.
ISSN 1432-0495
DOI: https://doi.org/10.1007/s002540100315
Abstract in another language
Groundwater in the semiarid Rioverde basin in the nothern part of Mexico was investigated with respect to major and minor elements including arsenic as well as As(III) and As(V). The total arsenic concentrations varied from less than 5 to 50 mg/L. The in situ arsenic determination method produced reliable results with deviations from -5.6 to 2.2 mg/L compared to laboratory HGAAS. Since arsenic and barium were found to be inversely correlated precipitation of bariumarsenate was suspected to control arsenic solubility. Thermodynamically modeling by means of PHREEQC proved that BaHAsSO4×H2O (not BaAsSO4) might be a limiting phase, however only at higher concentrations than those determined in this study. Increased arsenic groundwater concentrations were found with lacustrine and decreased concentrations with fluvial Quarternary sediments. Increased total arsenic concentrations correlate with increased As(III) concentrations in the groundwater of the lacustrine sediments.
Further data
| Item Type: | Article in a journal |
|---|---|
| Refereed: | Yes |
| Additional notes: | BAYCEER80700 |
| Institutions of the University: | Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences > Professor Environmental Geochemistry Group Faculties Faculties > Faculty of Biology, Chemistry and Earth Sciences Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences |
| Result of work at the UBT: | Yes |
| DDC Subjects: | 500 Science |
| Date Deposited: | 22 Oct 2015 07:29 |
| Last Modified: | 22 Oct 2015 07:29 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/20655 |