Tools
Tools
de Los Santos Valladares, L, Camapaza, JL, Bedgregal, RV, Castro, LB, Velazquez, J, Perera, DHN, Ionescu, A, Arvidsson, D, Barnes, EP, Newton, PJ, Lepage, HV, Byrne, PA, Dominguez, AB and Barnes, CHW (2022) Physical and chemical characterization of sediments from an Andean river exposed to mining and agricultural activities: The Moquegua River, Peru. International Journal of Sediment Research, 37 (6). pp. 780-793. ISSN 1001-6279
|
Text
Physical and chemical characterization of sediments from an Andean.pdf - Accepted Version Available under License Creative Commons Attribution Non-commercial No Derivatives. Download (2MB) | Preview |
Abstract
This study presents an analysis of sediments in an Andean river impacted by both natural conditions and anthropogenic activities. Fifty samples were collected from selected sites throughout the Moquegua River drainage basin, and Tambo River headwaters at Pasto Grande, in Peru, and analysed with X-ray diffraction, energy dispersive X-ray spectroscopy, scanning electron microscopy, Fourier-transform infrared spectroscopy and thermogravimetric analysis. Si, Ca, Al, Fe, and O, common constituents of soils, were dominant, along with K, N, and P. The latter originating as primary macronutrients or chemical residuals from fertilizers used in agriculture. Higher concentrations of macronutrients and organic components were found in agricultural and urban areas, respectively. Arsenic minerals were also detected, which occur naturally, but possibly at levels augmented by anthropogenic activity. The application of cluster analysis revealed clustering between arsenic, arsenolite, and potassium but no significant geospatial correlation between sample sites in the drainage basin.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Environmental Engineering; 0403 Geology; 0503 Soil Sciences |
| Subjects: | G Geography. Anthropology. Recreation > GC Oceanography G Geography. Anthropology. Recreation > GE Environmental Sciences |
| Divisions: | Biological & Environmental Sciences (from Sep 19) |
| Publisher: | Elsevier |
| SWORD Depositor: | A Symplectic |
| Date Deposited: | 17 Nov 2022 11:44 |
| Last Modified: | 05 Sep 2023 00:50 |
| DOI or ID number: | 10.1016/j.ijsrc.2022.06.002 |
| URI: | https://researchonline.ljmu.ac.uk/id/eprint/17315 |
 |
View Item |