Environmental toxicity assessment in the Paraná river delta (Argentina): simultaneous evaluation of selected pollutants and mortality rates of Corbicula fluminea (Bivalvia) early juveniles
Water and sediment samples were collected in the lower Paraná delta at four sites with different levels of exposure to pollution to evaluate the anthropogenic impact through chemical analyses and mortality bioassays. Individual polychlorinated biphenyls, chlorinated pesticides, aliphatic hydrocarbon...
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2001
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02697491_v112_n3_p379_Cataldo http://hdl.handle.net/20.500.12110/paper_02697491_v112_n3_p379_Cataldo |
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paper:paper_02697491_v112_n3_p379_Cataldo2023-06-08T15:24:22Z Environmental toxicity assessment in the Paraná river delta (Argentina): simultaneous evaluation of selected pollutants and mortality rates of Corbicula fluminea (Bivalvia) early juveniles Cataldo, Daniel Hugo Boltovskoy, Demetrio Contaminants Corbicula fluminea Molluscs Paraná river Toxicity 1,1 dichloro 2,2 bis(4 chlorophenyl)ethylene chlordane chlorphenotane fresh water heavy metal heptachlor industrial effluent lindane organic matter pesticide polychlorinated biphenyl polycyclic aromatic hydrocarbon surface water trace metal mortality pollutant pollution exposure toxicity animal experiment article chemical analysis measurement mollusc mortality nonhuman river sediment standard water contamination water pollution Animals Argentina Bivalvia Fresh Water Geologic Sediments Hydrocarbons Hydrocarbons, Chlorinated Metals, Heavy Pesticides Soil Pollutants Water Pollutants, Chemical Argentina Bivalvia Corbicula fluminea Mollusca Water and sediment samples were collected in the lower Paraná delta at four sites with different levels of exposure to pollution to evaluate the anthropogenic impact through chemical analyses and mortality bioassays. Individual polychlorinated biphenyls, chlorinated pesticides, aliphatic hydrocarbons, polycyclic aromatic hydrocarbons, and heavy metals were measured in waters, porewaters and sediments. The same three phases were also subjected to toxicity assays with straight-hinged juveniles of Corbicula fluminea. Concentrations of several pollutants were above levels recommended for the protection of aquatic life: in waters, Zn, Cu and Cr were 1.6-4.9 times higher, whereas in the sediments Cr was 1.8-3.6, and benzo(a)pyrene was 2.8-5.6 times higher. Pollutant concentrations followed a clear geographic pattern with highest values in the densely populated area of the Reconquista and Luján rivers, lower levels in the San Antonio, and lowest loadings in the remote Paraná de las Palmas. This gradient was adequately matched by the pattern of mortality rates of C. fluminea early juveniles, which were highest in the Reconquista-Luján (40-93%) and lowest (and not significantly different from the control) in the Paraná (3.3-23%). Mortality rates also increased from surface waters (3.3-53%), to porewaters (12-73%), to sediments (23-93%). Although toxicity was probably mainly due to dissolved contaminants, agreement between chemical and biological evidence of pollution was best for the sediment compartment, whereas porewater and surface water showed a higher degree of variability. Copyright © 2001 Elsevier Science Ltd. Fil:Cataldo, D. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Boltovskoy, D. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2001 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02697491_v112_n3_p379_Cataldo http://hdl.handle.net/20.500.12110/paper_02697491_v112_n3_p379_Cataldo |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Contaminants Corbicula fluminea Molluscs Paraná river Toxicity 1,1 dichloro 2,2 bis(4 chlorophenyl)ethylene chlordane chlorphenotane fresh water heavy metal heptachlor industrial effluent lindane organic matter pesticide polychlorinated biphenyl polycyclic aromatic hydrocarbon surface water trace metal mortality pollutant pollution exposure toxicity animal experiment article chemical analysis measurement mollusc mortality nonhuman river sediment standard water contamination water pollution Animals Argentina Bivalvia Fresh Water Geologic Sediments Hydrocarbons Hydrocarbons, Chlorinated Metals, Heavy Pesticides Soil Pollutants Water Pollutants, Chemical Argentina Bivalvia Corbicula fluminea Mollusca |
| spellingShingle |
Contaminants Corbicula fluminea Molluscs Paraná river Toxicity 1,1 dichloro 2,2 bis(4 chlorophenyl)ethylene chlordane chlorphenotane fresh water heavy metal heptachlor industrial effluent lindane organic matter pesticide polychlorinated biphenyl polycyclic aromatic hydrocarbon surface water trace metal mortality pollutant pollution exposure toxicity animal experiment article chemical analysis measurement mollusc mortality nonhuman river sediment standard water contamination water pollution Animals Argentina Bivalvia Fresh Water Geologic Sediments Hydrocarbons Hydrocarbons, Chlorinated Metals, Heavy Pesticides Soil Pollutants Water Pollutants, Chemical Argentina Bivalvia Corbicula fluminea Mollusca Cataldo, Daniel Hugo Boltovskoy, Demetrio Environmental toxicity assessment in the Paraná river delta (Argentina): simultaneous evaluation of selected pollutants and mortality rates of Corbicula fluminea (Bivalvia) early juveniles |
| topic_facet |
Contaminants Corbicula fluminea Molluscs Paraná river Toxicity 1,1 dichloro 2,2 bis(4 chlorophenyl)ethylene chlordane chlorphenotane fresh water heavy metal heptachlor industrial effluent lindane organic matter pesticide polychlorinated biphenyl polycyclic aromatic hydrocarbon surface water trace metal mortality pollutant pollution exposure toxicity animal experiment article chemical analysis measurement mollusc mortality nonhuman river sediment standard water contamination water pollution Animals Argentina Bivalvia Fresh Water Geologic Sediments Hydrocarbons Hydrocarbons, Chlorinated Metals, Heavy Pesticides Soil Pollutants Water Pollutants, Chemical Argentina Bivalvia Corbicula fluminea Mollusca |
| description |
Water and sediment samples were collected in the lower Paraná delta at four sites with different levels of exposure to pollution to evaluate the anthropogenic impact through chemical analyses and mortality bioassays. Individual polychlorinated biphenyls, chlorinated pesticides, aliphatic hydrocarbons, polycyclic aromatic hydrocarbons, and heavy metals were measured in waters, porewaters and sediments. The same three phases were also subjected to toxicity assays with straight-hinged juveniles of Corbicula fluminea. Concentrations of several pollutants were above levels recommended for the protection of aquatic life: in waters, Zn, Cu and Cr were 1.6-4.9 times higher, whereas in the sediments Cr was 1.8-3.6, and benzo(a)pyrene was 2.8-5.6 times higher. Pollutant concentrations followed a clear geographic pattern with highest values in the densely populated area of the Reconquista and Luján rivers, lower levels in the San Antonio, and lowest loadings in the remote Paraná de las Palmas. This gradient was adequately matched by the pattern of mortality rates of C. fluminea early juveniles, which were highest in the Reconquista-Luján (40-93%) and lowest (and not significantly different from the control) in the Paraná (3.3-23%). Mortality rates also increased from surface waters (3.3-53%), to porewaters (12-73%), to sediments (23-93%). Although toxicity was probably mainly due to dissolved contaminants, agreement between chemical and biological evidence of pollution was best for the sediment compartment, whereas porewater and surface water showed a higher degree of variability. Copyright © 2001 Elsevier Science Ltd. |
| author |
Cataldo, Daniel Hugo Boltovskoy, Demetrio |
| author_facet |
Cataldo, Daniel Hugo Boltovskoy, Demetrio |
| author_sort |
Cataldo, Daniel Hugo |
| title |
Environmental toxicity assessment in the Paraná river delta (Argentina): simultaneous evaluation of selected pollutants and mortality rates of Corbicula fluminea (Bivalvia) early juveniles |
| title_short |
Environmental toxicity assessment in the Paraná river delta (Argentina): simultaneous evaluation of selected pollutants and mortality rates of Corbicula fluminea (Bivalvia) early juveniles |
| title_full |
Environmental toxicity assessment in the Paraná river delta (Argentina): simultaneous evaluation of selected pollutants and mortality rates of Corbicula fluminea (Bivalvia) early juveniles |
| title_fullStr |
Environmental toxicity assessment in the Paraná river delta (Argentina): simultaneous evaluation of selected pollutants and mortality rates of Corbicula fluminea (Bivalvia) early juveniles |
| title_full_unstemmed |
Environmental toxicity assessment in the Paraná river delta (Argentina): simultaneous evaluation of selected pollutants and mortality rates of Corbicula fluminea (Bivalvia) early juveniles |
| title_sort |
environmental toxicity assessment in the paraná river delta (argentina): simultaneous evaluation of selected pollutants and mortality rates of corbicula fluminea (bivalvia) early juveniles |
| publishDate |
2001 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02697491_v112_n3_p379_Cataldo http://hdl.handle.net/20.500.12110/paper_02697491_v112_n3_p379_Cataldo |
| work_keys_str_mv |
AT cataldodanielhugo environmentaltoxicityassessmentintheparanariverdeltaargentinasimultaneousevaluationofselectedpollutantsandmortalityratesofcorbiculaflumineabivalviaearlyjuveniles AT boltovskoydemetrio environmentaltoxicityassessmentintheparanariverdeltaargentinasimultaneousevaluationofselectedpollutantsandmortalityratesofcorbiculaflumineabivalviaearlyjuveniles |
| _version_ |
1768544316545826816 |