In situ application of stir bar sorptive extraction as a passive sampling technique for the monitoring of agricultural pesticides in surface waters
| Autor: | Azziz Assoumani, Christelle Margoum, Nicolas Mazzella, Sophie Lissalde, Marina Coquery |
|---|---|
| Přispěvatelé: | Milieux aquatiques, écologie et pollutions (UR MALY), Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA), Réseaux épuration et qualité des eaux (UR REBX) |
| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: |
Insecticides
Environmental Engineering ECHANTILLONNAGE 010501 environmental sciences Agricultural pesticides CAPTEUR PASSIF 01 natural sciences FIELD STUDY Polar organic chemical integrative sampler SBSE Rivers PESTICIDES Water Quality PESTICIDE Environmental Chemistry WATER MONITORING Waste Management and Disposal 0105 earth and related environmental sciences POCIS EAU DE SURFACE Herbicides Chemistry Water Pollution 010401 analytical chemistry Extraction (chemistry) Sampling (statistics) PASSIVE SAMPLING Agriculture Pollution 6. Clean water Fungicides Industrial 0104 chemical sciences Environmental chemistry [SDE]Environmental Sciences Water Pollutants Chemical Environmental Monitoring Passive sampling |
| Zdroj: | Science of the Total Environment Science of the Total Environment, Elsevier, 2013, 463-464, p. 829-p. 835. ⟨10.1016/j.scitotenv.2013.06.025⟩ |
| ISSN: | 0048-9697 1879-1026 |
| Popis: | Grab sampling and automated sampling are not suitable or logistically too constraining for the monitoring of pesticides in dynamic streams located in agricultural watersheds. In this work, we applied stir bar sorptive extraction (SBSE) Twisters® directly in two small rivers of a French vineyard (herein referred to as “passive SBSE”), for periods of one or two weeks during a month, for the passive sampling of 19 agricultural pesticides. We performed qualitative and semi-quantitative comparisons of the performances of passive SBSE firstly to automated sampling coupled to analytical SBSE, and secondly to the polar organic chemical integrative sampler (POCIS), a well-known passive sampler for hydrophilic micropollutants. Applying passive SBSE in river waters allowed the quantification of more pesticides and in greater amounts than analytical SBSE as shown for samples collected concurrently. Also, passive SBSE and POCIS proved to be complementary techniques in terms of detected molecules; but only passive SBSE was able to integrate a concentration peak triggered by a quick flood event that lasted 5 h. Passive SBSE could be an interesting tool for the monitoring of moderately hydrophobic to hydrophobic organic micropollutants in changing hydrosystems. In this purpose, further studies will focus on the accumulation kinetics of target pesticides and the determination of their sampling rates. |
| Databáze: | OpenAIRE |
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