Analysis of environmental and farming factors of soil contamination by a persistent organic pollutant, chlordecone, in a banana production area of French West Indies

Levillain, Joseph; Cattan, Philippe; Colin, François; Voltz, Marc; Cabidoche, Yves-Marie

doi:10.1016/j.agee.2012.07.005

Cited by 56 publications

(63 citation statements)

References 41 publications

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“…This K oc value is consistent with the reported range in the literature of 2500 to 20,000 cm 3 g -1 (Woignier et al, 2012) and indicates that CLD sorption on the soil is mainly controlled by hydrophobic interactions with soil organic carbon (Cabidoche et al, 2009;Levillain et al, 2012;Li et al, 2012), while inorganic soil components like clay minerals play a relatively minor role, which produces a limited mobility of CLD in soils (Fernandez-Bayo et al, 2013a;. The sorption of SDZ in the same (Kaldenkirchen-Hülst) soil was described in an earlier study (Zarfl, 2008 (Kasteel et al, 2010).…”

Section: Adsorption Of Cld and Sdz On Mwcnts And Soilsupporting

confidence: 81%

Co-transport of chlordecone and sulfadiazine in the presence of functionalized multi-walled carbon nanotubes in soils

Zhang

Engelhardt

Šimůnek

et al. 2017

Environmental Pollution

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a b s t r a c tBatch and saturated soil column experiments were conducted to investigate sorption and mobility of two 14 C-labeled contaminants, the hydrophobic chlordecone (CLD) and the sulfadiazine (SDZ), in the absence or presence of functionalized multi-walled carbon nanotubes (MWCNTs). The transport behaviors of CLD, SDZ, and MWCNTs were studied at environmentally relevant concentrations (0.1e10 mg L À1 ) and they were applied in the column studies at different times. The breakthrough curves and retention profiles were simulated using a numerical model that accounted for the advective-dispersive transport of all compounds, attachment/detachment of MWCNTs, equilibrium and kinetic sorption of contaminants, and co-transport of contaminants with MWCNTs. The experimental results indicated that the presence of mobile MWCNTs facilitated remobilization of previously deposited CLD and its co-transport into deeper soil layers, while retained MWCNTs enhanced SDZ deposition in the topsoil layers due to the increased adsorption capacity of the soil. The modeling results then demonstrated that the mobility of engineered nanoparticles (ENPs) in the environment and the high affinity and entrapment of contaminants to ENPs were the main reasons for ENP-facilitated contaminant transport. On the other hand, immobile MWCNTs had a less significant impact on the contaminant transport, even though they were still able to enhance the adsorption capacity of the soil.

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Section: Adsorption Of Cld and Sdz On Mwcnts And Soilsupporting

confidence: 81%

Co-transport of chlordecone and sulfadiazine in the presence of functionalized multi-walled carbon nanotubes in soils

Zhang

Engelhardt

Šimůnek

et al. 2017

Environmental Pollution

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“…These soils have high organic carbon contents compared to nitisols, in the range 2 to 6 %; pH in water is between 5 and 6; and cation exchange capacity ranges between 10 and 29 meq %g. They also have a high infiltration capacity with saturated hydraulic conductivity greater than 60 mm h −1 (Cabidoche et al 2009;Levillain et al 2012). Andosols contain amorphous clay, allophane, which has a completely different microstructure than the phyllosilicate microstructure of classical crystalline clays found in nitisols.…”

Section: Soil Samplesmentioning

confidence: 97%

Compost addition reduces porosity and chlordecone transfer in soil microstructure

Woignier

Clostre²,

Fernandes³

et al. 2015

Environ Sci Pollut Res

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Chlordecone, an organochlorine insecticide, pollutes soils and contaminates crops and water resources and is biomagnified by food chains. As chlordecone is partly trapped in the soil, one possible alternative to decontamination may be to increase its containment in the soil, thereby reducing its diffusion into the environment. Containing the pesticide in the soil could be achieved by adding compost because the pollutant has an affinity for organic matter. We hypothesized that adding compost would also change soil porosity, as well as transport and containment of the pesticide. We measured the pore features and studied the nanoscale structure to assess the effect of adding compost on soil microstructure. We simulated changes in the transport properties (hydraulic conductivity and diffusion) associated with changes in porosity. During compost incubation, the clay microstructure collapsed due to capillary stresses. Simulated data showed that the hydraulic conductivity and diffusion coefficient were reduced by 95 and 70% in the clay microstructure, respectively. Reduced transport properties affected pesticide mobility and thus helped reduce its transfer from the soil to water and to the crop. We propose that the containment effect is due not only to the high affinity of chlordecone for soil organic matter but also to a trapping mechanism in the soil porosity.

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“…Nowadays, CLD is still present in soils, especially in the densely cultivated areas from south of Basse-Terre (Guadeloupe) (Cabidoche et al, 2009). Although, Fernández-Bayo et al (2013) showed the existence of CLD degrading organisms in a tropical soil (andosol) microcosm under aerobic conditions, CLD undergoes no significant or quick biotic or abiotic degradation (Dolfing et al, 2012;Levillain et al, 2012). Driven by the water cycle, CLD in soils is progressively transferred to aquatic ecosystems (Coat et al, 2011) and also in the food web because of its high K oc (Soil Organic Carbon Water Partitioning Coefficient) (15849 L/Kg), K ow (Octanol-Water Partition Coefficient) (4.5-6.0) and its affinity for lipids (Cabidoche and Lesueur-Jannoyer, 2012;Clostre et al, 2013;Sterrett and Boss, 1977;UNEP, 2005;US-EPA, 2008).…”

Section: Introductionmentioning

confidence: 99%

Effects of chlordecone on 20-hydroxyecdysone concentration and chitobiase activity in a decapod crustacean, Macrobrachium rosenbergii

et al. 2016

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a b s t r a c tChlordecone (CLD) is an organochlorine insecticide abundant in aquatic environment of the French West Indies. However, few studies have investigated its impact on freshwater invertebrates. Whereas CLD is suspected of inducing endocrine disruption, this work aimed to study the effects of environmentally relevant concentrations of CLD on the 20-hydroxyecdysone (20-HE) hormone concentration and on the chitobiase activity, both having key roles in the molting process of crustaceans. In addition, the bioaccumulation of CLD was measured in the muscle tissue of Macrobrachium rosenbergii to underline potential dose-response relationship. The results have shown that CLD was bioaccumulated in exposed organisms according to a trend to a dose-response relationship. Moreover, it was observed that CLD decreased the 20-HE concentration in exposed prawns when compared to control, whatever the duration of exposure, as well as it inhibited the chitobiase activity after 30 days of exposure. The present study indicates that CLD could interfere with molting process of M. rosenbergii by disturbing the 20-HE concentration and the activity of chitobiase, suggesting consequences at the long term on the shrimp development. This study also confirmed that CLD could be an endocrine disruptor in decapod crustaceans, as it was already observed in vertebrates.

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Analysis of environmental and farming factors of soil contamination by a persistent organic pollutant, chlordecone, in a banana production area of French West Indies

Cited by 56 publications

References 41 publications

Co-transport of chlordecone and sulfadiazine in the presence of functionalized multi-walled carbon nanotubes in soils

Co-transport of chlordecone and sulfadiazine in the presence of functionalized multi-walled carbon nanotubes in soils

Compost addition reduces porosity and chlordecone transfer in soil microstructure

Effects of chlordecone on 20-hydroxyecdysone concentration and chitobiase activity in a decapod crustacean, Macrobrachium rosenbergii

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