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Risk assessment of pesticides detected in surface water of the Alqueva reservoir (Guadiana basin, southern of Portugal).
Sci Total Environ. 2014 Aug 01; 488-489:208-19.ST

Abstract

The purpose of this study was to evaluate the potential impact of the pesticides detected in the Alqueva reservoir (Guadiana Basin, South Iberian Peninsula) on the aquatic organisms belonging to this ecosystem. For this purpose, the occurrence and risk assessment of 25 pesticides and of a number of their degradation products were determined in the Alqueva surface waters. The areas (sampling stations) most polluted by pesticides were Sra. Ajuda, Lucefecit and Álamos in the northern and in the middle portions of the reservoir, respectively. The aquatic risk assessment revealed that from the various compounds analysed terbuthylazine, chlorfenvinphos and diazinon presented non-acceptable risk when maximum concentrations were used as the measured environmental concentrations (MEC). The locations that had more samples with risk quotients higher than 1 (high risk) were Sra. Ajuda followed by Lucefécit. The use of risk assessment allowed us to conclude that, despite that the pesticides' concentrations in the water column fulfil the European environmental quality standards, a number of the compounds show a high ecotoxicological risk for the aquatic organisms in the Alqueva ecosystem. The results thereby demonstrate that to have an efficient risk management process, the regulatory authorities of each country must consider an integrative chemical and ecotoxicological approach.

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Authors+Show Affiliations

Palma P
Departamento de Tecnologias e Ciências Aplicadas; Escola Superior Agrária, Instituto Politécnico de Beja, 7800-295 Beja, Portugal; CIMA - Centro de Investigação Marinha e Ambiental, FCT, Edifício 7, Piso 1, Universidade do Algarve, Campus Universitário de Gambelas, 8005-139 Faro, Portugal. Electronic address: ppalma@ipbeja.pt.
Köck-Schulmeyer M
Water and Soil Quality Research Group, Institute of Environmental Assessment and Water Research (IDAEA), Spanish Council for Scientific Research (CSIC), Jordi Girona 18-26, 08034 Barcelona, Spain.
Alvarenga P
Departamento de Tecnologias e Ciências Aplicadas; Escola Superior Agrária, Instituto Politécnico de Beja, 7800-295 Beja, Portugal; Centro de Estudos Farmacêuticos, Faculdade de Farmácia, Universidade de Coimbra, Rua do Norte, 3000-295 Coimbra, Portugal.
Ledo L
Departamento de Tecnologias e Ciências Aplicadas; Escola Superior Agrária, Instituto Politécnico de Beja, 7800-295 Beja, Portugal.
Barbosa IR
UIQA - Unidade de Investigação Química Ambiental, Instituto Superior de Agronomia, Universidade Técnica de Lisboa, Tapada da Ajuda, 1349-017 Lisboa, Portugal.
López de Alda M
Water and Soil Quality Research Group, Institute of Environmental Assessment and Water Research (IDAEA), Spanish Council for Scientific Research (CSIC), Jordi Girona 18-26, 08034 Barcelona, Spain.
Barceló D
Water and Soil Quality Research Group, Institute of Environmental Assessment and Water Research (IDAEA), Spanish Council for Scientific Research (CSIC), Jordi Girona 18-26, 08034 Barcelona, Spain; Catalan Institute for Water Research (ICRA), H2O Building, Scientific and Technological Park of the University of Girona, Emili Grahit 101, 17003 Girona, Spain.

MeSH

AnimalsAquatic OrganismsEcosystemEnvironmental MonitoringFresh WaterPesticidesPortugalRisk AssessmentWater Pollutants, Chemical

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

24836129

Citation

Palma, P, et al. "Risk Assessment of Pesticides Detected in Surface Water of the Alqueva Reservoir (Guadiana Basin, Southern of Portugal)." The Science of the Total Environment, vol. 488-489, 2014, pp. 208-19.
Palma P, Köck-Schulmeyer M, Alvarenga P, et al. Risk assessment of pesticides detected in surface water of the Alqueva reservoir (Guadiana basin, southern of Portugal). Sci Total Environ. 2014;488-489:208-19.
Palma, P., Köck-Schulmeyer, M., Alvarenga, P., Ledo, L., Barbosa, I. R., López de Alda, M., & Barceló, D. (2014). Risk assessment of pesticides detected in surface water of the Alqueva reservoir (Guadiana basin, southern of Portugal). The Science of the Total Environment, 488-489, 208-19. https://doi.org/10.1016/j.scitotenv.2014.04.088
Palma P, et al. Risk Assessment of Pesticides Detected in Surface Water of the Alqueva Reservoir (Guadiana Basin, Southern of Portugal). Sci Total Environ. 2014 Aug 1;488-489:208-19. PubMed PMID: 24836129.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Risk assessment of pesticides detected in surface water of the Alqueva reservoir (Guadiana basin, southern of Portugal). AU - Palma,P, AU - Köck-Schulmeyer,M, AU - Alvarenga,P, AU - Ledo,L, AU - Barbosa,I R, AU - López de Alda,M, AU - Barceló,D, Y1 - 2014/05/13/ PY - 2014/02/04/received PY - 2014/04/09/revised PY - 2014/04/22/accepted PY - 2014/5/20/entrez PY - 2014/5/20/pubmed PY - 2014/11/15/medline KW - Alqueva reservoir (Guadiana River Basin) KW - Environmental quality standards KW - Pesticides KW - Risk assessment KW - Surface water SP - 208 EP - 19 JF - The Science of the total environment JO - Sci Total Environ VL - 488-489 N2 - The purpose of this study was to evaluate the potential impact of the pesticides detected in the Alqueva reservoir (Guadiana Basin, South Iberian Peninsula) on the aquatic organisms belonging to this ecosystem. For this purpose, the occurrence and risk assessment of 25 pesticides and of a number of their degradation products were determined in the Alqueva surface waters. The areas (sampling stations) most polluted by pesticides were Sra. Ajuda, Lucefecit and Álamos in the northern and in the middle portions of the reservoir, respectively. The aquatic risk assessment revealed that from the various compounds analysed terbuthylazine, chlorfenvinphos and diazinon presented non-acceptable risk when maximum concentrations were used as the measured environmental concentrations (MEC). The locations that had more samples with risk quotients higher than 1 (high risk) were Sra. Ajuda followed by Lucefécit. The use of risk assessment allowed us to conclude that, despite that the pesticides' concentrations in the water column fulfil the European environmental quality standards, a number of the compounds show a high ecotoxicological risk for the aquatic organisms in the Alqueva ecosystem. The results thereby demonstrate that to have an efficient risk management process, the regulatory authorities of each country must consider an integrative chemical and ecotoxicological approach. SN - 1879-1026 UR - https://www.unboundmedicine.com/medline/citation/24836129/Risk_assessment_of_pesticides_detected_in_surface_water_of_the_Alqueva_reservoir__Guadiana_basin_southern_of_Portugal__ DB - PRIME DP - Unbound Medicine ER -