RT journal article
T1 Comprehensive Assessment and Potential Ecological Risk of Trace Element Pollution (As, Ni, Co and Cr) in Aquatic Environmental Samples from an Industrialized Area
A1 Díaz de Alba, Margarita Isabel
A1 Granado Castro, María Dolores
A1 Galindo Riaño, María Dolores
A1 Casanueva Marenco, María José
A2 Química Analítica
K1 metal pollution
K1 sediment
K1 water
K1 fish
K1 toxicity
K1 bioavailability
K1 speciation
AB A global assessment of arsenic (As), nickel (Ni), cobalt (Co) and chromium (Cr) was performed in environmental samples from an important industrial bay. Different fractions of water, sediments and tissues from four species of fish were analysed. Samples were collected from selected sampling sites during four consecutive samplings in spring and autumn seasons, in order to evaluate concentrations and their possible correlations among the aquatic compartments. While a higher availability of Cr and Ni was found in water, Co and As were the most available elements in sediments. In fish, the liver was the tissue with the highest proportion of As and Co, and gills showed the highest concentrations of Ni and Cr. Significance differences were observed among sites showing the pollution sources. In sediments, high correlations were found between total Co content and the most available fractions. Total Ni content highly correlated with the oxidisable fraction, while Cr total content tightly correlated with the least available fractions. Quality guideline values for sediments were frequently exceeded. In sediments and biota, concentrations were slightly higher than in other ecosystems, indicating that maritime, industrial and urban activities are affecting this type of ecosystem with great anthropogenic influence.
PB MDPI
SN 1660-4601
YR 2021
FD 2021-07
LK http://hdl.handle.net/10498/25598
UL http://hdl.handle.net/10498/25598
LA eng
NO This research was funded by "Consejeria de Economia, Conocimiento, Empresas y Universidad", Junta de Andalucia (Spain) (PAI-EXCEL-06-FQM-02075) and by "Fomento e Impulso de la Investigacion y de la Transferencia" Programme, Universidad de Cadiz (Spain) (PR2020-013).
DS Repositorio Institucional de la Universidad de Cádiz
RD 11-nov-2026