Runoff of pesticides from rice fields in the Ile de Camargue (Rhône river delta, France): Field study and modeling

Comoretto, Laetitia; Arfib, Bruno; Talva, Romain; Chauvelon, Philippe; Pichaud, Marc; Chirón, Serge; Höhener, Patrick

doi:10.1016/j.envpol.2007.04.021

Cited by 60 publications

(33 citation statements)

References 24 publications

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“…Many monitoring studies are available on this issue (Senseman, Lavy & Daniel, 1997;Garmouma et al, 1997;Thurman et al, 1998;Funari et al, 1995Funari et al, , 1998Kreuger, 1998;Spliid & Koppen, 1998;EEA, 1999;Tuxen et al, 2000;Scribner, Thurman & Zimmerman, 2000;Younes & Galal-Gorchev, 2000;Barbash et al, 2001;Van Maanen et al, 2001;Squillace et al, 2002;Cerejeira et al, 2003;Papadopoulou-Mourkidou et al, 2004;Lapworth & Gooddy, 2006;Comoretto et al, 2008). The main outcome from these studies is that the bulk of water contamination is represented by relatively few compounds.…”

Section: Pesticidesmentioning

confidence: 99%

Waterborne outbreaks in the Nordic countries, 1998 to 2012

et al. 2015

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A total of 175 waterborne outbreaks affecting 85,995 individuals were notified to the national outbreak surveillance systems in Denmark, Finland and Norway from 1998 to 2012, and in Sweden from 1998 to 2011. Between 4 and 18 outbreaks were reported each year during this period. Outbreaks occurred throughout the countries in all seasons, but were most common (n = 75/169, 44%) between June and August. Viruses belonging to the Caliciviridae family and Campylobacter were the pathogens most frequently involved, comprising n = 51 (41%) and n = 36 (29%) of all 123 outbreaks with known aetiology respectively. Although only a few outbreaks were caused by parasites (Giardia and/or Cryptosporidium), they accounted for the largest outbreaks reported during the study period, affecting up to 53,000 persons. Most outbreaks, 124 (76%) of those with a known water source (n = 163) were linked to groundwater. A large proportion of the outbreaks (n = 130/170, 76%) affected a small number of people (less than 100 per outbreak) and were linked to single-household water supplies. However, in 11 (6%) of the outbreaks, more than 1,000 people became ill. Although outbreaks of this size are rare, they highlight the need for increased awareness, particularly of parasites, correct water treatment regimens, and vigilant management and maintenance of the water supply and distribution systems.

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Section: Pesticidesmentioning

confidence: 99%

Waterborne outbreaks in the Nordic countries, 1998 to 2012

et al. 2015

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“…The volume of irrigation-induced drainage water discharged into the lagoons is about 480,000 m 3 per day during the crop period. This partially counterbalances the salinity increases in the lagoons that are due to high evaporation rates and seawater intrusion, but carries many anthropogenic substances into the protected area [3][4][5]. Thus, there is an ongoing debate on the management of water in this area.…”

Section: Introductionmentioning

confidence: 99%

“…The Vaccarès lagoon system is a complex system, exhibiting strong temporal and spatial variations in salinity, temperature, turbidity, oxygen, underwater irradiance, nutrients [9], and pesticide concentrations [4,5]. These spatial and temporal fluctuations in environmental conditions largely control the biogeochemical behavior of this system, and are the result of the interaction between freshwater and seawater inflows, rain, evaporation, and wind-driven forces, which vary over a wide range of time-scales and under particular geometry [10].…”

Section: Introductionmentioning

confidence: 99%

An Unstructured Numerical Model to Study Wind-Driven Circulation Patterns in a Managed Coastal Mediterranean Wetland: The Vaccarès Lagoon System

Boutron

Bertrand

Fiandrino

et al. 2015

Water

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Abstract:The spatiotemporal structure of wind-driven circulation patterns and associated water exchanges can drive important bio-hydrodynamic interactions in shallow lagoons. The Vaccarès lagoon system is a complex shallow hydrosystem located in the central part of the Rhône Delta (France). It is internationally recognized as part of a biosphere reserve within the framework of UNESCO's Man and Biosphere Programme, and as a RAMSAR site. Due to its frequent occurrence in this area, and considering the shallowness of the Vaccarès lagoon system, wind is assumed to play a major role in the hydrodynamic and biological processes. In this study, a hydrodynamic model was developed to investigate the structure of wind-driven circulations in the Vaccarès lagoon system, to provide insights into their role in transport and water exchange processes. The implementation and assessment (calibration and validation) of the model is presented first. Simulations were OPEN ACCESS Water 2015, 7 5987 then performed for two typical steady wind conditions and for one measured unsteady wind event. The results illustrate the influence of the complex geometry of the Vaccarès lagoon system on the wind-driven circulations, and the differences observed between the different sub-lagoons in this system. The differences in wind-induced water exchanges between these sub-lagoons are also discussed.

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“…Oxadiazon sorption is related to the OC content of the soils (Comoretto et al, 2008). In addition, the sorption of the herbicide in the suspended sediments can reduce the degradation rates of oxadiazon in the soil (Lin et al, 2000;Ying & Williams, 2000), forming carboxylic acid, phenolic derivatives and polar dealkylated products, which were identified as the metabolites of degradation of oxadiazon in the soil (Ying & Williams, 1999).…”

Section: Resultsmentioning

confidence: 99%

Sorption of oxadiazon in soils cultivated in the brazilian cerrado

et al. 2014

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-The objective of this study was to evaluate oxadiazon sorption in different soils of the Brazilian Cerrado, highlighting the correlations of lethal doses of this herbicide capable of inhibiting 50% of the dry matter accumulation of the bio-indicator (LD50) among the chemical characteristics of the soil and its direct and indirect effects. The experiment was carried out in a greenhouse in a randomized block design and four repetitions. Each experimental unit consisted of a pot with increasing rates of oxadiazon and oat (Avena sativa), as the bio-indicator species. For sorption evaluation, washed sand and 22 soils (substrates) from Cerrado Brazilian's Alliaceae cultivated areas were used. LD50 and sorption ratio (SR) = [(LD50soil -LD50sand)/ LD50sand] to the substrates were determined. Pearson correlation analysis was performed between the chemical characteristics of the substrates and the LD50 of oxadiazon. A path analysis was quantified, to deploy only the significant correlations estimated in direct and indirect effects of the characters on LD50, which is a basic variable. A more pronounced LD50 (528.09 g ha -1 ) for the Cerrado soil sample resulted in higher SR (> 53.00), while in the washed sand substrate, LD50 corresponded only to 9.74 g ha -1 of the oxadiazon (available in soil). It was concluded that oxadiazon sorption is influenced by the chemical characteristics of the soils, highlighting the correlation with pH (CaCl 2 ), magnesium content, aluminum, organic matter, organic carbon, and aluminum saturation.Keywords: bioassay, neutral herbicide, organic matter. RESUMO -Objetivou-se neste estudo avaliar a sorção do oxadiazon em diferentes solos do Cerrado Brasileiro, destacando as correlações da dose letal do herbicida capaz de inibir 50% do acúmulo da massa seca do bioindicador (DL50) entre as características químicas do solo e seus efeitos diretos e indiretos. O experimento foi realizado em casa de vegetação, com delineamento em blocos casualizados com quatro repetições. Cada unidade experimental foi constituída de um vaso com doses crescentes do oxadiazon; utilizou-se a aveia (Avena

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Runoff of pesticides from rice fields in the Ile de Camargue (Rhône river delta, France): Field study and modeling

Cited by 60 publications

References 24 publications

Waterborne outbreaks in the Nordic countries, 1998 to 2012

Waterborne outbreaks in the Nordic countries, 1998 to 2012

An Unstructured Numerical Model to Study Wind-Driven Circulation Patterns in a Managed Coastal Mediterranean Wetland: The Vaccarès Lagoon System

Sorption of oxadiazon in soils cultivated in the brazilian cerrado

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