Evaluation of pseudo-total and labile metals (Cu2+, Cr3+, Ni2+, Mn2+, Pb2+ and Zn2+) in surface sediments at the mouth of tributaries of the Itaipu Reservoir, Brazil
Fuente:
Redalyc
Saved in:
| Main Author: | |
|---|---|
| Format: | Artículo científico |
| Language: | en |
| Published: |
Universidade Estadual Paulista Júlio de Mesquita Filho
2018
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1876454243242606592 |
|---|---|
| author | Ismael Laurindo Costa Junior |
| author_facet | Ismael Laurindo Costa Junior |
| contents | Evaluation of pseudo-total and labile metals (Cu2+, Cr3+, Ni2+, Mn2+, Pb2+ and Zn2+) in surface sediments at the mouth of tributaries of the Itaipu Reservoir, Brazil Ismael Laurindo Costa Junior Thiara Reis Lopes Bruna Ataide Barros Fonseca Mariane Butik Juliana Bortoli Rodrigues Mees Adelmo Lowe Pletsch Yohandra Reyes Torres Química metals pollution freshwater sediments Environmental monitoring Sediments are reservoirs for a variety of substances widely used as indicators of pollution in aquatic environments. In this research it was carried out the evaluation of the concentration of metals in the pseudo-total and labile fractions in surface sediments at the mouth of four main tributaries of the Itaipu Reservoir. Three samplings were performed between February 2014 and March 2015 using Petersen type dredger. The determination of metals occurred by atomic absorption spectrometry and physicochemical parameters by gravimetric and potentiometric techniques. The samples presented neutral to slightly alkaline character and homogeneous pH values. It was observed the predominance of the clay fraction and the occurrence of variable organic matter between the points. In the labile fraction, only the copper content reached concentrations higher than the thresholds effects levels (TEL) at all sampling points. In the pseudo-total fraction, some sites presented for Cr3+, Pb2+ and Zn2+ TEL level. For Ni2+, values of probable effects level (PEL) were verified and for Cu2+, concentrations in severe effect level (SEL) were reported according to the international sediment classification criteria adopted by the National Oceanic and Atmospheric Administration (NOAA). 2018 artículo científico 0100-4670 https://www.redalyc.org/articulo.oa?id=42955828005 https://www.redalyc.org/journal/429/42955828005/ https://www.redalyc.org/journal/429/42955828005/html/ https://www.redalyc.org/journal/429/42955828005/42955828005.epub https://www.redalyc.org/journal/429/42955828005/movil https://doi.org/10.26850/1678-4618eqj.v43.1SI.2018.p51-61 en http://www.redalyc.org/revista.oa?id=429 Eclética Química application/pdf Universidade Estadual Paulista Júlio de Mesquita Filho Eclética Química (Brasil) Vol.43 |
| format | Artículo científico |
| id | redalyc_42955828005 |
| institution | Redalyc |
| language | en |
| publishDate | 2018 |
| publisher | Universidade Estadual Paulista Júlio de Mesquita Filho |
| spellingShingle | Evaluation of pseudo-total and labile metals (Cu2+, Cr3+, Ni2+, Mn2+, Pb2+ and Zn2+) in surface sediments at the mouth of tributaries of the Itaipu Reservoir, Brazil Ismael Laurindo Costa Junior Química metals pollution freshwater sediments Environmental monitoring Evaluation of pseudo-total and labile metals (Cu2+, Cr3+, Ni2+, Mn2+, Pb2+ and Zn2+) in surface sediments at the mouth of tributaries of the Itaipu Reservoir, Brazil Ismael Laurindo Costa Junior Thiara Reis Lopes Bruna Ataide Barros Fonseca Mariane Butik Juliana Bortoli Rodrigues Mees Adelmo Lowe Pletsch Yohandra Reyes Torres Química metals pollution freshwater sediments Environmental monitoring Sediments are reservoirs for a variety of substances widely used as indicators of pollution in aquatic environments. In this research it was carried out the evaluation of the concentration of metals in the pseudo-total and labile fractions in surface sediments at the mouth of four main tributaries of the Itaipu Reservoir. Three samplings were performed between February 2014 and March 2015 using Petersen type dredger. The determination of metals occurred by atomic absorption spectrometry and physicochemical parameters by gravimetric and potentiometric techniques. The samples presented neutral to slightly alkaline character and homogeneous pH values. It was observed the predominance of the clay fraction and the occurrence of variable organic matter between the points. In the labile fraction, only the copper content reached concentrations higher than the thresholds effects levels (TEL) at all sampling points. In the pseudo-total fraction, some sites presented for Cr3+, Pb2+ and Zn2+ TEL level. For Ni2+, values of probable effects level (PEL) were verified and for Cu2+, concentrations in severe effect level (SEL) were reported according to the international sediment classification criteria adopted by the National Oceanic and Atmospheric Administration (NOAA). 2018 artículo científico 0100-4670 https://www.redalyc.org/articulo.oa?id=42955828005 https://www.redalyc.org/journal/429/42955828005/ https://www.redalyc.org/journal/429/42955828005/html/ https://www.redalyc.org/journal/429/42955828005/42955828005.epub https://www.redalyc.org/journal/429/42955828005/movil https://doi.org/10.26850/1678-4618eqj.v43.1SI.2018.p51-61 en http://www.redalyc.org/revista.oa?id=429 Eclética Química application/pdf Universidade Estadual Paulista Júlio de Mesquita Filho Eclética Química (Brasil) Vol.43 |
| title | Evaluation of pseudo-total and labile metals (Cu2+, Cr3+, Ni2+, Mn2+, Pb2+ and Zn2+) in surface sediments at the mouth of tributaries of the Itaipu Reservoir, Brazil |
| topic | Química metals pollution freshwater sediments Environmental monitoring |
| url | https://www.redalyc.org/articulo.oa?id=42955828005 https://www.redalyc.org/journal/429/42955828005/ https://www.redalyc.org/journal/429/42955828005/html/ https://www.redalyc.org/journal/429/42955828005/42955828005.epub https://www.redalyc.org/journal/429/42955828005/movil https://doi.org/10.26850/1678-4618eqj.v43.1SI.2018.p51-61 |