Abstract
The region of Toledo River, Paraná, Brazil is characterized by intense anthropogenic activities. Hence, metal concentrations and physical–chemical parameters of Toledo River water were determined in order to complete an environmental evaluation catalog. Samples were collected monthly during one year period at seven different sites from the source down the river mouth, physical–chemical variables were analyzed, and major metallic ions were measured. Metal analysis was performed by using the synchrotron radiation total reflection X-ray fluorescence technique. A statistical analysis was applied to evaluate the reliability of experimental data. The analysis of obtained results have shown that a strong correlation between physical–chemical parameters existed among sites 1 and 7, suggesting that organic pollutants were mainly responsible for decreasing the Toledo River water quality.
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Acknowledgements
We are grateful to the Brazilian Light Synchrotron Laboratory (LNLS) for the partial financial support of this study (project #1624).
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Espinoza-Quiñones, F.R., Palácio, S.M., Módenes, A.N. et al. Water quality assessment of Toledo River and determination of metal concentrations by using SR-TXRF technique. J Radioanal Nucl Chem 283, 465–470 (2010). https://doi.org/10.1007/s10967-009-0438-3
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DOI: https://doi.org/10.1007/s10967-009-0438-3