[article]
| Titre : |
Occurrence and risk assessment of pesticides in a Mediterranean Basin with strong agricultural pressure (Guadiana Basin: Southern of Portugal) |
| Type de document : |
objet à 3 dimensions, artefacts, ... |
| Auteurs : |
P. Palma ; S. Fialho ; M. Lopez de Alda ; C. Postigo ; L.S. Monllor-Alcaraz ; M.V. Barbieri ; M.J. Costa ; A. Catarino ; A. Lima |
| Année de publication : |
2021 |
| Article en page(s) : |
p. 1-12 |
| Langues : |
Anglais (eng) Langues originales : Anglais (eng) |
| Catégories : |
A HISTOIRE - Pays et ensemble de pays:Histoire de l'Europe:Europe occidentale:Portugal ; A HISTOIRE - Pays et ensemble de pays:Histoire du Monde Rural:Agriculture ; C ECONOMIE - ECONOMIE SOCIALE ET SOLIDAIRE:Matériaux et produits:Produit chimique:Produit phytochimique:Pesticide ; S SCIENCES ET TECHNIQUES:Pollution, catastrophes et sécurité:Dégradation de l'environnement:Pollution ; S SCIENCES ET TECHNIQUES:Pollution, catastrophes et sécurité:Dégradation de l'environnement:Pollution:Pollution de l'eau
|
| Mots-clés : |
07 - ENVIRONNEMENT 7.5 - Dégradation : Impact, Désertification POLLUTION BY AGRICULTURE POLLUTION PAR L'AGRICULTURE PESTICIDES PESTICIDE RESIDUES RESIDU DE PESTICIDE WATER POLLUTION RISK RISQUE ENVIRONMENTAL IMPACT ASSESSMENT EVALUATION IMPACT SUR ENVIRONNEMENT |
| Résumé : |
The study aimed to assess the occurrence and the environmental risk of a group of 51 selected pesticides in the Guadiana Basin (a biodiversity hotspot, in the Mediterranean). The most abundant pesticides were bentazone and 2,4-D, while terbuthylazine together with terbutryn constituted the most ubiquitous pesticides. Eighteen out of the 38 pesticides detected are no longer approved in Europe, and 5 of them are included in the list of priority substances. The risk assessment showed that azinphos ethyl, diflufenican, irganol, imidacloprid, and oxadiazon occurred occasionally, but always in concentrations above their respective ecotoxicological threshold value. Contrary, bentazone, terbuthylazine, and terbutryn presented a high risk in most of the sampled locations and periods. The site-specific risk assessment showed a spatial and temporal pattern, with a higher risk occurring mainly in intermittent streams, in the drought period. The presence of pesticides banned from the EU market since 2009 showed the importance of improving the monitoring process, to identify the main sources of pollution and the fate of these emerging compounds. The results showed the need of implementing actions to improve the sustainable use of pesticides in agricultural areas, working with farmers and management entities to reduce the contamination of aquatic ecosystems. Transboundary water governance is also required to solve potential transboundary contamination problems. |
| En ligne : |
https://doi.org/10.1016/j.scitotenv.2021.148703 |
| Permalink : |
https://cs.iut.univ-tours.fr/index.php?lvl=notice_display&id=272813 |
in Science of the Total Environment > vol. 794 (10 November 2021) . - p. 1-12
[article] Occurrence and risk assessment of pesticides in a Mediterranean Basin with strong agricultural pressure (Guadiana Basin: Southern of Portugal) [objet à 3 dimensions, artefacts, ...] / P. Palma ; S. Fialho ; M. Lopez de Alda ; C. Postigo ; L.S. Monllor-Alcaraz ; M.V. Barbieri ; M.J. Costa ; A. Catarino ; A. Lima . - 2021 . - p. 1-12. Langues : Anglais ( eng) Langues originales : Anglais ( eng) in Science of the Total Environment > vol. 794 (10 November 2021) . - p. 1-12
| Catégories : |
A HISTOIRE - Pays et ensemble de pays:Histoire de l'Europe:Europe occidentale:Portugal ; A HISTOIRE - Pays et ensemble de pays:Histoire du Monde Rural:Agriculture ; C ECONOMIE - ECONOMIE SOCIALE ET SOLIDAIRE:Matériaux et produits:Produit chimique:Produit phytochimique:Pesticide ; S SCIENCES ET TECHNIQUES:Pollution, catastrophes et sécurité:Dégradation de l'environnement:Pollution ; S SCIENCES ET TECHNIQUES:Pollution, catastrophes et sécurité:Dégradation de l'environnement:Pollution:Pollution de l'eau
|
| Mots-clés : |
07 - ENVIRONNEMENT 7.5 - Dégradation : Impact, Désertification POLLUTION BY AGRICULTURE POLLUTION PAR L'AGRICULTURE PESTICIDES PESTICIDE RESIDUES RESIDU DE PESTICIDE WATER POLLUTION RISK RISQUE ENVIRONMENTAL IMPACT ASSESSMENT EVALUATION IMPACT SUR ENVIRONNEMENT |
| Résumé : |
The study aimed to assess the occurrence and the environmental risk of a group of 51 selected pesticides in the Guadiana Basin (a biodiversity hotspot, in the Mediterranean). The most abundant pesticides were bentazone and 2,4-D, while terbuthylazine together with terbutryn constituted the most ubiquitous pesticides. Eighteen out of the 38 pesticides detected are no longer approved in Europe, and 5 of them are included in the list of priority substances. The risk assessment showed that azinphos ethyl, diflufenican, irganol, imidacloprid, and oxadiazon occurred occasionally, but always in concentrations above their respective ecotoxicological threshold value. Contrary, bentazone, terbuthylazine, and terbutryn presented a high risk in most of the sampled locations and periods. The site-specific risk assessment showed a spatial and temporal pattern, with a higher risk occurring mainly in intermittent streams, in the drought period. The presence of pesticides banned from the EU market since 2009 showed the importance of improving the monitoring process, to identify the main sources of pollution and the fate of these emerging compounds. The results showed the need of implementing actions to improve the sustainable use of pesticides in agricultural areas, working with farmers and management entities to reduce the contamination of aquatic ecosystems. Transboundary water governance is also required to solve potential transboundary contamination problems. |
| En ligne : |
https://doi.org/10.1016/j.scitotenv.2021.148703 |
| Permalink : |
https://cs.iut.univ-tours.fr/index.php?lvl=notice_display&id=272813 |
|
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