Persistent organic pollutant in a fish community of a sub-alpine lake
| Autor: | E.C. Bizzotto, Sara Villa, Marco Vighi |
|---|---|
| Přispěvatelé: | Villa, S, Bizzotto, E, Vighi, M |
| Rok vydání: | 2010 |
| Předmět: |
Abiotic component
Persistent organic pollutant Ecology Health Toxicology and Mutagenesis Aquatic ecosystem Biomagnification Fishes General Medicine Toxicology Pollution Polychlorinated Biphenyls Isotopes of nitrogen Persistent organic pollutants Carbon isotope Nitrogen isotope Fish community Trophic magnification factor Italy Isotopes of carbon Environmental chemistry Hydrocarbons Chlorinated Environmental science Animals BIO/07 - ECOLOGIA Water Pollutants Chemical Isotope analysis Trophic level |
| Zdroj: | Environmental pollution (Barking, Essex : 1987). 159(4) |
| ISSN: | 1873-6424 |
| Popis: | This study investigated the presence of organochlorine pollutants in abiotic and biotic samples from Lake Como (Italy). DDTs and PCBs were found to be the major contaminants, ranging from 0.04 to 4.25 and from 0.25 to 40.8 μg/g lipid respectively. Evidence of biomagnification according to the trophic role of the investigated organisms was highlighted by means of Stable Isotope Analysis. A Trophic Magnification Factor (TMF) was calculated for the chemicals of interest and the applicability of the method for global use was confirmed. Statistically significant correlation has been found between the calculated trophic level and the concentrations of more lipophilic compounds, while for the less lipophilic (e.g.; HCH, 3CBs) the relationship is no statistically significant and the TMF is close to 1. The role of the foraging area in affecting PCB and DDT concentrations within aquatic ecosystems has been highlighted by a Principal Component Analysis (PCA). © 2011 Elsevier Ltd. All rights reserved. |
| Databáze: | OpenAIRE |
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