Pesticides in the Ebro River basin: Occurrence and risk assessment

Autor: Alícia Navarro-Ortega, Damià Barceló, Alexander Ccanccapa, Yolanda Picó, Ana Masiá
Přispěvatelé: European Commission
Rok vydání: 2016
Předmět:
Diazinon
010504 meteorology & atmospheric sciences
Liquid chromatography – Mass spectrometry
Health
Toxicology and Mutagenesis
Drainage basin
010501 environmental sciences
Ecotoxicology
Toxicology
01 natural sciences
Daphnia
chemistry.chemical_compound
Water Pollution
Chemical
Ebro basin
geography.geographical_feature_category
biology
Fishes
Biota
General Medicine
Pollution
6. Clean water
Chlorpyrifos
Environmental chemistry
Environmental Monitoring
Monitoring
Algae
Risk Assessment
Toxic Units
Rivers
Animals
Pesticides
0105 earth and related environmental sciences
Mixture toxicity
geography
fungi
Pesticide Residues
Sediment
Pesticide
biology.organism_classification
Fish
chemistry
Spain
13. Climate action
Risk quotient
Environmental science
Benzimidazoles
Carbamates
Water Pollutants
Chemical
Zdroj: Digital.CSIC. Repositorio Institucional del CSIC
instname
ISSN: 0269-7491
DOI: 10.1016/j.envpol.2015.12.059
Popis: In this study, 50 pesticides were analyzed in the Ebro River basin in 2010 and 2011 to assess their impact in water, sediment and biota. A special emphasis was placed on the potential effects of both, individual pesticides and their mixtures, in three trophic levels (algae, daphnia and fish) using Risk Quotients (RQs) and Toxic Units (TUs) for water and sediments. Chlorpyrifos, diazinon and carbendazim were the most frequent in water (95, 95 and 70% of the samples, respectively). Imazalil (409.73 ng/L) and diuron (150 ng/L) were at the highest concentrations. Sediment and biota were less contaminated. Chlorpyrifos, diazinon and diclofenthion were the most frequent in sediments (82, 45 and 21% of the samples, respectively). The only pesticide detected in biota was chlorpyrifos (up to 840.2 ng g−1). Ecotoxicological risk assessment through RQs showed that organophosphorus and azol presented high risk for algae; organophosphorus, benzimidazoles, carbamates, juvenile hormone mimic and other pesticides for daphnia, and organophosphorus, azol and juvenile hormone mimics for fish. The sum TUsite for water and sediments showed values < 1 for the three bioassays. In both matrices, daphnia and fish were more sensitive to the mixture of pesticide residues present.
This work has been supported by the Spanish Ministry of Economy and Competitiveness through the projects NET-SCARCE project (CTM2015-69780-REDC); “Evaluation of Emerging Contaminants in the Turia River Basins: From Basic Research to the Application of Environmental Forensics (EMERFOR)” (GCL2011- 29703-C02-02, http://mefturia.es) and European Communities 7th Framework Programme funding under Grant Agreement No. 603629-ENV-2013-6.2.1-Globaqua. A, Ccanccapa gratefully acknowledges the Conselleria DEducaci o, Cultura y Sport de Valencia for the financial support through “Santiago Grisolía” Scholarship Program.
Databáze: OpenAIRE
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