Presence of pesticides in surface water from four sub-basins in Argentina

Gerónimo, Eduardo De; Aparicio, Virginia; Bárbaro, Sebastián; Portocarrero, Rocío; Jaime, Sebastián; Costa, José Luís

doi:10.1016/j.chemosphere.2014.01.039

Cited by 224 publications

(91 citation statements)

References 56 publications

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“…ATZ is one of the important environmental pollutants, especially for surface waters (De Geronimo et al, 2014), but the solubility of ATZ is low and it did not cause high mortality on aquatic organisms (Lenkowski et al, 2010;Svartz et al, 2012;Chromcova et al, 2013). So, the LC 50 of ATZ could not be obtained up to 200 mg/L exposure in embryos or tadpoles of X. laevis.…”

Section: Discussionmentioning

confidence: 98%

Toxicological aspects of photocatalytic degradation of selected xenobiotics with nano-sized Mn-doped TiO2

et al. 2015

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Section: Discussionmentioning

confidence: 98%

Toxicological aspects of photocatalytic degradation of selected xenobiotics with nano-sized Mn-doped TiO2

et al. 2015

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“…A quite high pesticide concentration, corresponding to a suberin model/pesticide 1:1 ratio was used. The obtained model can be extrapolated to describe interactions between suberin and pesticides at concentration levels of μg L −1 such as those found in aqueous compartments (de Gerónimo et al, 2014;Köck-Schulmeyer et al, 2013).…”

Section: Peakmentioning

confidence: 99%

Binding interactions between suberin monomer components and pesticides

Olivella

Bazzicalupi

Bianchi

et al. 2015

Science of The Total Environment

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Understanding the role of biomacromolecules and their interactions with pollutants is a key for elucidating the sorption mechanisms and making an accurate assessment of the environmental fate of pollutants. The knowledge of the sorption properties of the different constituents of these biomacromolecules may furnish a significant contribution to this purpose. Suberin is a very abundant biopolymer in higher plants. In this study, suberin monomers isolated from cork were analyzed by thermally-assisted methylation with tetramethylammonium hydroxide (TMAH) in a pyrolysis unit coupled to gas chromatography-mass spectrometry (GC/MS). The isolated monomer mixture was used to study the sorption of three pesticides (isoproturon, methomyl and oxamyl). The modes of pesticide-sorbent interactions were analyzed by means of two modeling calculations, the first one representing only the mixture of suberin monomers used in the sorption study, and the second one including glycerol to the mixture of suberin monomers, as a building block of the suberin molecule. The results indicated that the highest sorption capacity exhibited by the sorbent was for isoproturon (33%) being methomyl and oxamyl sorbed by the main suberin components to a lesser extent (3% and<1%, respectively). In addition to van der Waals interactions with the apolar region of sorbent and isoproturon, modeling calculations evidenced the formation of a hydrogen bond between the isoproturon NH group and a carboxylic oxygen atom of a suberin monomer. In the case of methomyl and oxamyl only weak van der Waals interactions stabilize the pesticide-sorbent adducts. The presence of glycerol in the model provoked significant changes in the interactions with isoproturon and methomyl.

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“…The intensification of the agricultural production around the world associated with problems of overuse and misuse of pesticides has increased the interest on environmental effect of pesticides. Pesticides have been detected in different environmental matrices, such as surface water (De Gerónimo et al 2014;Palma et al 2014), sediments (Guo et al 2014;Li et al 2014), fish tissue (Yohannes et al 2014;Zhang et al 2012), and mussels (Boonyatumanond et al 2002;Khaled et al 2004;Carro et al 2014;HercegRomanic et al 2014). Particularly, pesticide contamination of aquatic ecosystems has emerged as an important environmental issue in the last few decades.…”

Section: Introductionmentioning

confidence: 96%

Pesticides in Ichkeul Lake–Bizerta Lagoon Watershed in Tunisia: use, occurrence, and effects on bacteria and free-living marine nematodes

Salem

Saïd

Aïssa

et al. 2015

Environ Sci Pollut Res

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This study aimed to identify the most commonly used agricultural pesticides around Ichkeul Lake-Bizerta Lagoon watershed. First survey of pesticide use on agricultural watershed was performed with farmers, Regional Commissioner for Agricultural Development, and pesticide dealers. Then, sediment contamination by pesticides and response of benthic communities (bacteria and free-living marine nematode) were investigated. The analysis of 22 active organochlorine pesticides in sediments was performed according to quick, easy, cheap, effective, rugged, and safe (QuEChERS) method, biodiversity of indigenous bacterial community sediment was determined by terminal restriction fragment length polymorphism (T-RFLP), and free-living marine nematodes were counted. The results of the field survey showed that iodosulfuron, mesosulfuron, 2,4-dichlorophenoxyacetic acid (2,4 D), glyphosate, and fenoxaprops were the most used herbicides, tebuconazole and epoxiconazole the most used fungicides, and deltamethrin the most used insecticide. Sixteen organochlorine pesticide compounds among the 22 examined were detected in sediments up to 2 ppm in Ichkeul Lake, endrin, dieldrin, and hexachlorocyclohexane being the most detected molecules. The most pesticide-contaminated site in the lake presented the higher density of nematode, but when considering all sites, no clear correlation with organochlorine pesticide (OCP) content could be established. The bacterial community structure in the most contaminated site in the lake was characterized by the terminal restriction fragments (T-RFs) 97, 146, 258, 285, and 335 while the most contaminated site in the lagoon was characterized by the T-RFs 54, 263, 315, 403, and 428. Interestingly, T-RFs 38 and 143 were found in the most contaminated sites of both lake and lagoon ecosystems, indicating that they were resistant to OCPs and able to cope with environmental fluctuation of salinity. In contrast, the T-RFs 63, 100, 118, and 381 in the lake and the T-RFs 40, 60, 80, 158, 300, 321, and 357 in the lagoon were sensitive to OCPs. This study highlighted that the intensive use of pesticides in agriculture, through transfer to aquatic ecosystem, may disturb the benthic ecosystem functioning of the protected area. The free-living marine nematodes and bacterial communities represent useful proxy to follow the ecosystem health and its capacity of resilience.

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Presence of pesticides in surface water from four sub-basins in Argentina

Cited by 224 publications

References 56 publications

Toxicological aspects of photocatalytic degradation of selected xenobiotics with nano-sized Mn-doped TiO2

Toxicological aspects of photocatalytic degradation of selected xenobiotics with nano-sized Mn-doped TiO2

Binding interactions between suberin monomer components and pesticides

Pesticides in Ichkeul Lake–Bizerta Lagoon Watershed in Tunisia: use, occurrence, and effects on bacteria and free-living marine nematodes

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