Pesticides in ground water beneath Loukkos perimeter, Northwest Morocco

Bakouri, Hicham El; Ouassini, A.; Morillo, José; Usero, José

doi:10.1016/j.jhydrol.2007.10.002

Cited by 32 publications

(12 citation statements)

References 31 publications

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“…However, highest concentrations of PAH metabolites with statistical significant difference to ''Sebou up'' were found in eel from Loukkos, which is a less industrialized area. Although the Loukkos estuary is known for its intense agricultural activity (El Bakouri et al 2008) and the sampling site is in an area directly affected by discharged water especially from rice fields, this does not explain elevated PAH levels. Due to the size of the area, unknown sources of contamination cannot be fully excluded.…”

Section: Bull Environ Contam Toxicolmentioning

confidence: 99%

PAH Metabolites in Bile of European Eel (Anguilla anguilla) from Morocco

Wariaghli

Kammann²,

Hanel³

et al. 2015

Bull Environ Contam Toxicol

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Environmental pollution of fish with organic contaminants is a topic of rising attention in Morocco. Polycyclic aromatic hydrocarbons (PAH) are prominent organic contaminants which are rapidly metabolized in fish. Their metabolites are accumulated in the bile fluid and can be used to assess PAH exposure. The two PAH metabolites 1-hydroxypyrene and 1-hydroxyphenanthrene were quantified in European eels (Anguilla anguilla) from two Moroccan river systems by high-performance liquid chromatography with fluorescence detection. Mean values ranged from 52 to 210 ng/mL 1-hydroxypyrene and from 61 to 73 ng/mL 1-hydroxyphenanthrene. The overall concentrations of PAH metabolites in eel from Morocco appeared moderate compared to eel from European rivers and coastal sites. The present study provides first information on concentrations of PAH metabolites in fish from Morocco.

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Section: Bull Environ Contam Toxicolmentioning

confidence: 99%

PAH Metabolites in Bile of European Eel (Anguilla anguilla) from Morocco

Wariaghli

Kammann²,

Hanel³

et al. 2015

Bull Environ Contam Toxicol

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“…Given the interest in water pollution, monitoring studies have been conducted in the USA (Momplaisir et al, 2010), in several countries in Europe, such as Hungary (Maloschik et al, 2007), France (Comoretto et al, 2007;Baran et al, 2008), Italy (Guzzella et al, 2006), Greece (Vryzas et al, 2009), Portugal (Palma et al, 2009), Serbia (Dujakovíc et al, 2010) and Spain (Carabias Martínez et al, 2002;Belmonte Vega et al, 2005;Kuster et al, 2008;Postigo et al, 2010) and outside Europe, such as Egypt (Potter et al, 2007), Morocco (El Bakouri et al, 2008) and China (Xue et al, 2005) to evaluate pollution in surface and ground waters for future remediation, as appropriate.…”

Section: Introductionmentioning

confidence: 99%

Occurrence of pesticides and some of their degradation products in waters in a Spanish wine region

Herrero‐Hernández

Andrades

Álvarez‐Martín

et al. 2013

Journal of Hydrology

168

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Surface and ground waters Vineyards s u m m a r y A multi-residual analytical method based on solid phase extraction (SPE) followed by liquid chromatography-electrospray ionisation-mass spectrometry (LC-MS) was developed to monitor pesticides in natural waters. Fifty-eight compounds, including herbicides, fungicides, insecticides and some of their degradation products, were surveyed to evaluate the quality of natural waters throughout the winegrowing region of La Rioja (Rioja DOCa). Ninety-two sampling points were selected, including surface and ground waters that could be affected by agricultural activities covering the region's three sub-areas. Different parameters that may affect the efficiency of the SPE procedure were optimised (sorbent type, elution solvent and sample volume), and matrix-matched standards were used to eliminate the variable matrix effect and ensure good quantification. The developed method allows the determination of target compounds below the level established by the European Union for waters for human use with suitable precision (relative standard deviations lower than 18%) and accuracy (with recoveries over 61%). Forty compounds included in this study (six insecticides, 12 herbicides, 16 fungicides and six degradation products) were detected in one or more samples. The herbicides terbuthylazine, its metabolite desethyl terbuthylazine, fluometuron and ethofumesate and the fungicides pyrimethanil and tebuconazole were the compounds most frequently detected in water samples (present in more than 60% of the samples). Concentrations above 0.1 lg L À1 were detected for 37 of the compounds studied, and in several cases recorded values of over 18 lg L À1 . The results reveal the presence of pesticides in most of the samples investigated. In 64% of groundwaters and 62% of surface waters, the sum of compounds detected was higher than 0.5 lg L À1 (the limit established by EU legislation for the sum of all pesticides detected in waters for human use).

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“…Currently pesticide transports from agricultural land to atmosphere, groundwaters and river waters have been the issue of scientific interest and investigated by a number of authors [12][13][14][15][16][17][18][19][20]. The studies performed by Richards et al [21], Larson and Capel [22], indicate that transport of pesticides from cultivated land to surrounding surface water occurs through surface run-off and/or sub-surface flow.…”

Section: Introductionmentioning

confidence: 99%