Abstract
The transport of elements in fluvial waters within the Candiota region was evaluated by determining the elements associated with suspended particulate matter (SPM). To that end, SPM samples were collected at nine different locations five times from December 1999 to October 2000. The particle-induced X-ray emission technique was used to determine elements associated with SPM. Data interpretation was performed using factor analysis. Among the results explained by factor 1, the highest score was found to be due to the effect of local anthropogenic sources (coal mines) during the dry season. On the other hand, factor 2 was substantially heterogeneous, emphasising the sum of all anthropogenic contributions generated at the basin. Flux ratio and enrichment factor were calculated to elucidate the balance between weathering and solute transport. Results showed that Mn, Ni, Fe, Cu and Zn were carried by Candiota Stream particles, indicating that coal mining is presumably responsible for contamination of these elements in SPM.
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