| Title |
A Critical Comparison of Different Approaches to Sediment-Quality Assessments in the Santos Estuarine System in Brazil
|
|---|---|
| Published in |
Archives of Environmental Contamination and Toxicology, November 2014
|
| DOI | 10.1007/s00244-014-0099-2 |
| Pubmed ID | |
| Authors |
Ronaldo J. Torres, Augusto Cesar, Victor A. Pastor, Camilo D. S. Pereira, Rodrigo B. Choueri, Fernando S. Cortez, Rodofley D. Morais, Denis M. S. Abessa, Marcos R. L. do Nascimento, Cassia R. Morais, Pedro S. Fadini, Tomas A. Del Valls Casillas, Antônio A. Mozeto |
| Abstract |
This study focuses on the discussion of different lines of evidence (LoEs) applied to a sediment-quality assessment that considered the following: chemical concentrations of metals; polycyclic aromatic hydrocarbons (PAHs) in estuarine waters, sediments, and oysters (native and caged Crassostrea brasiliana); PAHs in semipermeable membrane devices (SPMDs); simultaneously extracted metals-acid volatile sulfides (SEM-AVS); benthic community assessment (the exploratory benthic index and the relative benthic index); chronic toxicity tests with the sea urchin Lytechinus variegatus; and bioaccumulation models. Significantly contaminated sediments from the Santos Estuarine System and the consequent toxicity of tested organisms were measured. Caged oysters presented bioaccumulation rates ≤2,500 % of total PAH content and 200 % of metal content when compared with control organisms from an uncontaminated area. SPMD results presented the same bioaccumulation pattern as caged oysters but at lower concentrations. Benthic communities presented some alterations, and there was a predominance of tolerant species in the inner part of the estuary. According to the SEM-AVS approach, metals should be assumed to be nonbioavailable, but experiments with transplanted C. brasiliana showed metal bioaccumulation, particularly in the cases of chromium, copper, mercury, and zinc. The weight-of-evidence approach was applied to compare and harmonize LoEs commonly used in sediment-quality assessments and to then classify estuary environments according to both their potential for having adverse effects on the biota and their possible ecological risks. All of the results of these approaches (except for SEM-AVS) were found to complement each other. |
X Demographics
The data shown below were collected from the profile of 1 X user who shared this research output. Click here to find out more about how the information was compiled.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 1 | 100% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 1 | 100% |
Mendeley readers
The data shown below were compiled from readership statistics for 74 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 74 | 100% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Researcher | 14 | 19% |
| Student > Doctoral Student | 11 | 15% |
| Student > Master | 8 | 11% |
| Student > Bachelor | 6 | 8% |
| Student > Ph. D. Student | 6 | 8% |
| Other | 17 | 23% |
| Unknown | 12 | 16% |
| Readers by discipline | Count | As % |
|---|---|---|
| Environmental Science | 24 | 32% |
| Agricultural and Biological Sciences | 16 | 22% |
| Chemistry | 5 | 7% |
| Earth and Planetary Sciences | 3 | 4% |
| Biochemistry, Genetics and Molecular Biology | 1 | 1% |
| Other | 4 | 5% |
| Unknown | 21 | 28% |
Attention Score in Context
This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 14 November 2014.
All research outputs
#21,153,429
of 23,806,312 outputs
Outputs from Archives of Environmental Contamination and Toxicology
#1,720
of 2,093 outputs
Outputs of similar age
#216,848
of 258,565 outputs
Outputs of similar age from Archives of Environmental Contamination and Toxicology
#14
of 33 outputs
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