| Autor: |
Veses O; Department of Chemical Engineering and Environmental Technology, University of Zaragoza, C/Pedro Cerbuna 12, 50009, Zaragoza, Spain. themachineiq@hotmail.com, Mosteo R, Ormad MP, Ovelleiro JL |
| Jazyk: |
angličtina |
| Zdroj: |
Bulletin of environmental contamination and toxicology [Bull Environ Contam Toxicol] 2013 Jan; Vol. 90 (1), pp. 136-42. Date of Electronic Publication: 2012 Nov 10. |
| DOI: |
10.1007/s00128-012-0884-4 |
| Abstrakt: |
This study was carried out in order to assess potential toxicity of hazardous pollutants (8 trace elements and 8 polycyclic aromatic hydrocarbons) in 20 sediment samples of the Ebro River basin (Spain) sampled in 2009. Mean-probable effect concentration quotient (m-PECQ) was found to range from 0.03 to 0.79. Two sites were classified as high priority sites in order to take future remediation actions due to their high m-PECQ value (>0.5). Worst-case scenario in equilibrium partitioning approach showed that acid volatile sulfide (AVS) content was greater than total trace element concentration in all samples. However, 4 sediments were classified as degraded due to the high AVS content measured (>50 mmol/kg). Principal component analysis classified the samples according to similar chemical characteristics and revealed that industrial activities are the main source of pollution of the basin. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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