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Dr. Christophe Waterlot
Civil and geo-Environmental Engineering Laboratory (LGCgE) – Yncréa ISA Hauts-de-France, Lille Catholic University, 59046 Lille, France

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0 Chromatography
0 Metals
0 Phytoremediation
0 Soil Chemistry
0 spectrométry

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Metals
spectrométry
Chromatography
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plant biomass

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Journal article
Published: 11 March 2021 in Ecotoxicology and Environmental Safety
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Phytomanagement is proposed as a cost-effective and environmentally-friendly suggestion for sustainable use of large metal-contaminated areas. In the current work, the energy crop miscanthus (Miscanthus × giganteus) was grown in ex situ conditions on agricultural soils presenting a Cd, Pb and Zn contamination gradient. After 93 days of culture, shoot and root growth parameters were measured. Soils and plants were sampled as well to study the TE accumulation in miscanthus and the effects of this plant on TE mobility in soils. Results demonstrated that miscanthus growth depended more on the soils silt content rather than TE-contamination level. Moreover, soil organic carbon at T93 increased in the soils after miscanthus cultivation by 25.5–45.3%, whereas CaCl2-extractible TEs decreased due to complex rhizosphere processes driving plant mineral uptake, and organic carbon inputs into the rhizosphere. In the contaminated soils, miscanthus accumulated Cd, Pb and Zn mainly in roots (BCF in roots: Cd " Zn > Pb), while strongly reducing the transfer of these elements from soil to all organs and from roots to rhizomes, stems and leaves (average TFs: 0.01–0.06, 0.11–1.15 and 0.09–0.79 corresponding to Cd, Pb and Zn respectively). Therefore, miscanthus could be considered a TE-excluder, hence a potential candidate crop for coupling phytostabilization and biomass production on the studied Metaleurop TE-contaminated soils.

ACS Style

Florien Nsanganwimana; Karim Suhail Al Souki; Christophe Waterlot; Francis Douay; Aurélie Pelfrêne; Andrea Ridošková; Brice Louvel; Bertrand Pourrut. Potentials of Miscanthus x giganteus for phytostabilization of trace element-contaminated soils: Ex situ experiment. Ecotoxicology and Environmental Safety 2021, 214, 112125 .

AMA Style

Florien Nsanganwimana, Karim Suhail Al Souki, Christophe Waterlot, Francis Douay, Aurélie Pelfrêne, Andrea Ridošková, Brice Louvel, Bertrand Pourrut. Potentials of Miscanthus x giganteus for phytostabilization of trace element-contaminated soils: Ex situ experiment. Ecotoxicology and Environmental Safety. 2021; 214 ():112125.

Chicago/Turabian Style

Florien Nsanganwimana; Karim Suhail Al Souki; Christophe Waterlot; Francis Douay; Aurélie Pelfrêne; Andrea Ridošková; Brice Louvel; Bertrand Pourrut. 2021. "Potentials of Miscanthus x giganteus for phytostabilization of trace element-contaminated soils: Ex situ experiment." Ecotoxicology and Environmental Safety 214, no. : 112125.

Journal article
Published: 22 December 2020 in Sustainability
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The conception of two biosourced catalysts (biocatalysts) using stems of miscanthus from the first part of this study are described herein. The temperature and the process used to extract metals from plant as mixture of Lewis acids were investigated in detail and proved to be essential in the design of the biosourced catalysts and their catalytic efficiency. One part of the crude mixture of Lewis acids extracted from the aerial parts of miscanthus plants was used without further treatment as a homogeneous biocatalyst (M1), and the other part was supported on montmorillonite K10 to provide a heterogeneous biocatalyst (MM1). M1 and MM1 were next tested in the synthesis of moclobemide (main ingredient of a drug used to treat depression) and led to excellent yield. Additional comparative experiments with different commercial metallic salts (NaCl, KCl, CaCl2, MgCl2, CuCl2, ZnCl2, FeCl2, FeCl3, MnCl2, and AlCl3) and their mixtures were carried out and underlined the importance of the multimetallic synergy on catalytic activity. Finally, a comparison of this new synthetic method assisted by the biosourced catalyst with the previously described procedures to access moclobemide was realized by calculating their green chemistry metrics. This study revealed that the use of the biosourced catalyst led to one of the greenest synthetic methods described today to produce moclobemide.

ACS Style

Théo Guérin; Alina Ghinet; Christophe Waterlot. Toward a New Way for the Valorization of Miscanthus Biomass Produced on Metal-Contaminated Soils Part 2: Miscanthus-Based Biosourced Catalyst: Design, Preparation, and Catalytic Efficiency in the Synthesis of Moclobemide. Sustainability 2020, 13, 34 .

AMA Style

Théo Guérin, Alina Ghinet, Christophe Waterlot. Toward a New Way for the Valorization of Miscanthus Biomass Produced on Metal-Contaminated Soils Part 2: Miscanthus-Based Biosourced Catalyst: Design, Preparation, and Catalytic Efficiency in the Synthesis of Moclobemide. Sustainability. 2020; 13 (1):34.

Chicago/Turabian Style

Théo Guérin; Alina Ghinet; Christophe Waterlot. 2020. "Toward a New Way for the Valorization of Miscanthus Biomass Produced on Metal-Contaminated Soils Part 2: Miscanthus-Based Biosourced Catalyst: Design, Preparation, and Catalytic Efficiency in the Synthesis of Moclobemide." Sustainability 13, no. 1: 34.

Research letter
Published: 16 December 2020 in Green Chemistry Letters and Reviews
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Lolium perenne L., a common plant perennial ryegrass from Europe, northern Africa and Asia, was selected to produce biomass under field conditions. The biomass of this nonfood crop was from a highly contaminated agricultural soil by potentially toxic metals (Cd, Pb and Zn) with the aim of maintaining the agricultural vocation of these soils. In this perspective and in view of the metal concentration (Cd, Pb, Zn, macro- and micro-nutrients), the biomass of ryegrass was considered as a bio 'ore' resource and was used as the starting material for the preparation of contemporary biosourced catalysts. The heterogeneous catalyst from the current work was successfully used in the synthesis of Moclobemide, used to treat anxiety and major depressive episodes. Through this original approach, Moclobemide was synthesized in one step, in 80% yield under solvent-free conditions. GRAPHICAL ABSTRACT

ACS Style

Marie Hechelski; Christophe Waterlot; Pierrick Dufrénoy; Brice Louvel; Adam Daïch; Alina Ghinet. Biomass of ryegrass from field experiments: toward a cost-effective and efficient biosourced catalyst for the synthesis of Moclobemide. Green Chemistry Letters and Reviews 2020, 14, 15 -22.

AMA Style

Marie Hechelski, Christophe Waterlot, Pierrick Dufrénoy, Brice Louvel, Adam Daïch, Alina Ghinet. Biomass of ryegrass from field experiments: toward a cost-effective and efficient biosourced catalyst for the synthesis of Moclobemide. Green Chemistry Letters and Reviews. 2020; 14 (1):15-22.

Chicago/Turabian Style

Marie Hechelski; Christophe Waterlot; Pierrick Dufrénoy; Brice Louvel; Adam Daïch; Alina Ghinet. 2020. "Biomass of ryegrass from field experiments: toward a cost-effective and efficient biosourced catalyst for the synthesis of Moclobemide." Green Chemistry Letters and Reviews 14, no. 1: 15-22.

Journal article
Published: 11 November 2020 in Sustainability
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The effects of P-fertilizers (mono- and di-calcium phosphates) on the bioavailability of metals and nutrients in leaves and stems of Miscanthus × giganteus were studied in mesocosm and field experiments in order to propose a new way for the valorization of miscanthus biomass. The concentration of potentially toxic elements was generally higher in stems than in leaves. Although P-fertilizers were added to contaminated soils under sustainable conditions (from 0.022% to 0.026% w/w), the average of leaf and stem biomass generally increased in the presence of P-fertilizers due to the changes in the speciation of phosphorus. Leaves of the investigated miscanthus may be of great interest as a catalyst in organic chemistry, since the Ca concentration was up to 9000 mg kg−1 DW. Stems represent a potential biomass that can be used as renewable resource of Lewis acids, currently used in organic syntheses (the sum of Zn, Cu, Mn, Fe, Mg, Si and Al was near 1000 mg kg−1 DW). The percentage of Cd and Pb in leaves and stems of miscanthus did not significantly change with P-fertilizers. Depending on the mesocosm and field experiments, it ranged from 0.004% to 0.016% and from 0.009% and 0.034% for Cd in leaves and stems, respectively, and from 0.004% to 0.015% and from 0.009% and 0.033% for Pb in leaves and stems, respectively.

ACS Style

Marie Hechelski; Brice Louvel; Pierrick Dufrénoy; Alina Ghinet; Christophe Waterlot. Toward a New Way for the Valorization of Miscanthus Biomass Produced on Metal-Contaminated Soils Part 1: Mesocosm and Field Experiments. Sustainability 2020, 12, 9370 .

AMA Style

Marie Hechelski, Brice Louvel, Pierrick Dufrénoy, Alina Ghinet, Christophe Waterlot. Toward a New Way for the Valorization of Miscanthus Biomass Produced on Metal-Contaminated Soils Part 1: Mesocosm and Field Experiments. Sustainability. 2020; 12 (22):9370.

Chicago/Turabian Style

Marie Hechelski; Brice Louvel; Pierrick Dufrénoy; Alina Ghinet; Christophe Waterlot. 2020. "Toward a New Way for the Valorization of Miscanthus Biomass Produced on Metal-Contaminated Soils Part 1: Mesocosm and Field Experiments." Sustainability 12, no. 22: 9370.

Journal article
Published: 27 August 2020 in Bioresource Technology
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Three plant biomasses (miscanthus, ryegrass and wheat) have been considered for the preparation of five different sorbents evaluated for their potential to sorb cadmium and lead and four emergent organic compounds (diclofenac, sulfamethoxazole, 17α-ethynylestradiol and triclosan) from artificially contaminated water. Lab-created cartridges were filled with each sorbent and all experiments were systematically compared to activated charcoal Norit®. Results from activated charcoal, wheat straw and acidified wheat straw were supported by the Langmuir and Freundlich models. Wheat straw ashes were an excellent metal extractor that exceeded the potential of well-known activated charcoal. Acidified sorbents (wheat and ryegrass) were very effective in eliminating the selected emerging organic contaminants displaying equipotent or superior activity compared to activated charcoal. These results open the way for further in natura studies by proposing new biosource materials as new effective tools in the fight against water pollution.

ACS Style

Théo Guérin; Alina Ghinet; Marc Hossart; Christophe Waterlot. Wheat and ryegrass biomass ashes as effective sorbents for metallic and organic pollutants from contaminated water in lab-engineered cartridge filtration system. Bioresource Technology 2020, 318, 124044 .

AMA Style

Théo Guérin, Alina Ghinet, Marc Hossart, Christophe Waterlot. Wheat and ryegrass biomass ashes as effective sorbents for metallic and organic pollutants from contaminated water in lab-engineered cartridge filtration system. Bioresource Technology. 2020; 318 ():124044.

Chicago/Turabian Style

Théo Guérin; Alina Ghinet; Marc Hossart; Christophe Waterlot. 2020. "Wheat and ryegrass biomass ashes as effective sorbents for metallic and organic pollutants from contaminated water in lab-engineered cartridge filtration system." Bioresource Technology 318, no. : 124044.

Journal article
Published: 14 April 2020 in Science of The Total Environment
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Incidental ingestion of polluted soil particles exposes the population to toxic metal(loid)s. To refine the methods of exposure and risk assessment, it is relevant to use bioaccessible concentrations of metal(loid)s determined via in vitro digestion methods. However, some validated methods are complex and costly, involving high technical skills and numerous reagents. The objective of the present study was to evaluate the suitability of four simple chemical extractions to mimic the bioaccessible fraction of As, Cd, and Pb in the gastric (G) and gastrointestinal (GI) phases obtained using the validated UBM (unified bioaccessibility method) test. Acetic acid (0.11 M), citric acid (0.11 M), EDTA (0.16 M), and hydrochloric acid (HCl, 0.65%) were separately tested in 201 soil samples with a wide range of physicochemical parameters and metal(loid)s concentrations. Significant linear relationships were observed with HCl, EDTA, and to a lesser extent with citric acid. For the cheaper HCl method, correlations with the UBM ranged from 0.91 to 0.99 for the G phase and from 0.72 to 0.97 for the GI phase. This test can be used at least as a first-tier screening to assess the oral bioaccessibility of As, Cd, and Pb.

ACS Style

Aurélie Pelfrêne; Karin Sahmer; Christophe Waterlot; Philippe Glorennec; Francis Douay; Barbara Le Bot. Evaluation of single-extraction methods to estimate the oral bioaccessibility of metal(loid)s in soils. Science of The Total Environment 2020, 727, 138553 .

AMA Style

Aurélie Pelfrêne, Karin Sahmer, Christophe Waterlot, Philippe Glorennec, Francis Douay, Barbara Le Bot. Evaluation of single-extraction methods to estimate the oral bioaccessibility of metal(loid)s in soils. Science of The Total Environment. 2020; 727 ():138553.

Chicago/Turabian Style

Aurélie Pelfrêne; Karin Sahmer; Christophe Waterlot; Philippe Glorennec; Francis Douay; Barbara Le Bot. 2020. "Evaluation of single-extraction methods to estimate the oral bioaccessibility of metal(loid)s in soils." Science of The Total Environment 727, no. : 138553.

Full paper
Published: 17 January 2020 in ChemMedChem
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New environment friendly approach for the synthesis of idrocilamide (1), the marketed myorelaxant and anti-inflammatory agent, is reported. The synthetic strategy involves a solvent free aminolysis reaction catalyzed by different zinc-containing catalysts: ZnCl2, montmorillonite K10 impregnated with ZnCl2 or ecocatalysts. The latter have been prepared from the aerial parts of Lolium perenne L. plants grown on contaminated soils from North of France region The best aminolysis catalysts in the current study (ZnCl2 and Ecocat2) have been selected for additional aminolyses. Ecocat2 had the advantage of being reusable over five runs and constituted a sustainable catalyst allowing a green route to idrocilamide. Ecocat2 proved to be a versatile catalyst for amide bond formation via aminolysis of different methyl esters. Synthesized derivatives 1-4, 6 and 9 have been first evaluated for their effect on reactive oxygen species (ROS) generation from macrophages and displayed antioxidant properties by preventing ROS generation. Next, the analysis of the effect of molecules 1-4, 6 and 9 on macrophage migration between epithelial cells to human opportunistic fungus Candida albicans indicated that molecules 2-4, 6 and 9 exert anti-inflammatory properties via reducing macrophage migration while parent idrocilamide (1) did not show any significant effect. This work opens the way for the discovery of new analogues of idrocilamide with improved antioxidant and anti-inflammatory properties.

ACS Style

Pierrick Dufrénoy; Rogatien Charlet; Marie Hechelski; Adam Daïch; Christophe Waterlot; Samir Jawhara; Alina Ghinet. New Efficient Eco‐Friendly Supported Catalysts for the Synthesis of Amides with Antioxidant and Anti‐Inflammatory Properties. ChemMedChem 2020, 15, 459 -467.

AMA Style

Pierrick Dufrénoy, Rogatien Charlet, Marie Hechelski, Adam Daïch, Christophe Waterlot, Samir Jawhara, Alina Ghinet. New Efficient Eco‐Friendly Supported Catalysts for the Synthesis of Amides with Antioxidant and Anti‐Inflammatory Properties. ChemMedChem. 2020; 15 (5):459-467.

Chicago/Turabian Style

Pierrick Dufrénoy; Rogatien Charlet; Marie Hechelski; Adam Daïch; Christophe Waterlot; Samir Jawhara; Alina Ghinet. 2020. "New Efficient Eco‐Friendly Supported Catalysts for the Synthesis of Amides with Antioxidant and Anti‐Inflammatory Properties." ChemMedChem 15, no. 5: 459-467.

Journal article
Published: 26 November 2019 in Sustainability
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A restoration of highly contaminated garden soil is proposed as a greener alternative to the production of vegetables. Depending on potentially toxic elements and their concentration, ryegrass shoots accumulate these elements in sufficient quantity to be used as a catalyst in organic synthesis. The analysis of Cd, Pb, Zn, Cu, Fe, Mn, and Al in ashes issued from the calcination of ryegrass shoots revealed that the concentration of Zn was highest (>7000 mg kg–1). The ratios between potential Lewis acids (Zn, Cu, Fe, Mn, and Al) to carcinogenic metals (Cd or Pb) were 191 ± 7 for LA/Cd and 235 ± 13 for LA/Pb, making the shoots of ryegrass suitable for the production of Zn-rich polymetallic biosourced catalysts. This material was used in the synthesis of idrocilamide under free-solvent condition, providing the drug in a good yield (69.9%). Data show that a limitation of waste, a maximization of the material incorporation in the process, a minimization of the steps, and an optimization of the stoichiometric factor are the main innovative factors in the current process in comparison with those previously reported.

ACS Style

Christophe Waterlot; Pierrick Dufrénoy; Marie Hechelski; Brice Louvel; Adam Daïch; Alina Ghinet. Benefits of Ryegrass on Multicontaminated Soils Part 2: A Green Process to Provide Idrocilamide. Sustainability 2019, 11, 6685 .

AMA Style

Christophe Waterlot, Pierrick Dufrénoy, Marie Hechelski, Brice Louvel, Adam Daïch, Alina Ghinet. Benefits of Ryegrass on Multicontaminated Soils Part 2: A Green Process to Provide Idrocilamide. Sustainability. 2019; 11 (23):6685.

Chicago/Turabian Style

Christophe Waterlot; Pierrick Dufrénoy; Marie Hechelski; Brice Louvel; Adam Daïch; Alina Ghinet. 2019. "Benefits of Ryegrass on Multicontaminated Soils Part 2: A Green Process to Provide Idrocilamide." Sustainability 11, no. 23: 6685.

Journal article
Published: 18 September 2019 in Sustainability
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Effects of three phosphorus fertilizers on the shoot biomass and on the accumulation of alkali, alkaline earth, and transition metals in the shoots and roots of ryegrass were studied with two contaminated garden soils. Phosphates were added in sustainable quantities in order to reduce the environmental availability of carcinogenic metals (e.g., Cd and Pb) and to enhance the bioavailability of alkali and alkaline earth metals as well as micronutrients needed by plants. Addition of Ca(H2PO4)2 was the most convenient way to (i) limit the concentration of Cd and Pb, (ii) keep constant the transfer of macro- and micronutrient from the soil to the ryegrass shoots, (iii) decrease the availability of metals, and (iv) increase the ratio values between potential Lewis acids and Cd or Pb in order to produce biosourced catalysis. For instance, the real phytoavailability was reduced by 27%–57% and 64.2%–94.8% for Cd and Pb, respectively. Interestingly, the real phytoavailability of Zn was the highest in the least contaminated soils. Even if soils were highly contaminated, no visual toxicity symptoms were recorded in the growing ryegrasses. This indicates that ryegrass is suitable for the revegetation of contaminated gardens. To promote the sustainable ryegrass production on contaminated soils for production of new organic fragrance and drugs in green processes according to REACH (Registration, Evaluation, Authorisation, and Restriction of Chemicals) regulation, two processes should be recommended: assisted phytostabilization of the elements, and then assisted phytoextraction by using chelators.

ACS Style

Christophe Waterlot; Marie Hechelski. Benefits of Ryegrass on Multicontaminated Soils Part 1: Effects of Fertilizers on Bioavailability and Accumulation of Metals. Sustainability 2019, 11, 5093 .

AMA Style

Christophe Waterlot, Marie Hechelski. Benefits of Ryegrass on Multicontaminated Soils Part 1: Effects of Fertilizers on Bioavailability and Accumulation of Metals. Sustainability. 2019; 11 (18):5093.

Chicago/Turabian Style

Christophe Waterlot; Marie Hechelski. 2019. "Benefits of Ryegrass on Multicontaminated Soils Part 1: Effects of Fertilizers on Bioavailability and Accumulation of Metals." Sustainability 11, no. 18: 5093.

Article
Published: 09 September 2019 in Environmental Monitoring and Assessment
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Two kitchen garden soils (A and B) sampled in contaminated areas were amended using phosphates in sustainable quantities in order to reduce the environmental availability of potentially toxic inorganic elements (PTEs) and to favour the availability of alkali, alkali earth and micronutrients. The environmental availability of PTEs was evaluated using a potential plant for revegetation of contaminated soils (ryegrass) and a mixture of low molecular weight organic acids. Despite the highest contamination level of B, the concentration of metals was highest in the ryegrass shoots grown on A for the two harvests. These results correlated well with those obtained using low molecular weight organic acids for Cd, Zn and Cu, whereas this mixture failed to represent the transfer of nutrients due to the presence of biological and physiological mechanisms. The statistical differences between the biomass of ryegrass obtained at the first and the second harvests were attributed to the decrease of available potassium, implicated in the growth and development of plants. Phosphates increased the ratios Zn/Cd, Zn/Pb and Zn/Cu up to 176 ± 48, 38 ± 6 and 80 ± 12, respectively, and made possible the reduction of the concentration of Cd and Pb in the shoots of ryegrass by 22% and 25%, respectively. The concentration of Zn in the shoots of ryegrass from the first and the second harvests grown on soil A were in the range 1050–2000 mg kg−1, making this plant a potential biomass to (i) produce biosourced catalysts for organic chemistry applications in a circular economy concept and (ii) limit human exposure to commercial Lewis acids. A preliminary application was identified.

ACS Style

Marie Hechelski; Brice Louvel; Pierrick Dufrénoy; Alina Ghinet; Christophe Waterlot. A sustainable approach to manage metal-contaminated soils: a preliminary greenhouse study for the possible production of metal-enriched ryegrass biomass for biosourced catalysts. Environmental Monitoring and Assessment 2019, 191, 626 .

AMA Style

Marie Hechelski, Brice Louvel, Pierrick Dufrénoy, Alina Ghinet, Christophe Waterlot. A sustainable approach to manage metal-contaminated soils: a preliminary greenhouse study for the possible production of metal-enriched ryegrass biomass for biosourced catalysts. Environmental Monitoring and Assessment. 2019; 191 (10):626.

Chicago/Turabian Style

Marie Hechelski; Brice Louvel; Pierrick Dufrénoy; Alina Ghinet; Christophe Waterlot. 2019. "A sustainable approach to manage metal-contaminated soils: a preliminary greenhouse study for the possible production of metal-enriched ryegrass biomass for biosourced catalysts." Environmental Monitoring and Assessment 191, no. 10: 626.

Article
Published: 12 August 2019 in Water, Air, & Soil Pollution
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Two smelters in the North of France emitted potentially toxic metals for more than a century and today, the resulting contamination represents a risk to human health and affects also the biodiversity. To limit health risks and to improve the soil quality, a study using calcium phosphates (monocalcium phosphate, dicalcium phosphate and a mixture of both salts) and Lolium perenne L was conducted. Through this preliminary investigation, we will try to shed some light about (i) the effects of a sustainable amount of calcium phosphates on the agronomic, biological (microbial and fungi communities) and physiological parameters (chlorophyll a and b, antocyanins, carotenoids) as well as the phytoavailability of potentially toxic metals and nutrients in time, and (ii) the potential use of contaminated biomass from ryegrass as a source of new valorisation ways instead of using it as contaminated compost by gardeners. Although slight variations in pH and significant increases of assimilable phosphorus after adding calcium phosphates were registered, the physiology of plants and the biological parameters were statistically unchanged. The germination of the ryegrass seeds was favoured with calcium phosphates regardless the contamination level of the studied soils. No clear effects of calcium phosphates on the microbial and fungi communities were detected. In contrast, results indicated relationships between the physicochemical parameters of soils, their contamination level and the composition of fungal communities. Indeed, for one of the soils studied, calcium could limit the transport of nutrients, causing an increase in fungi to promote again the transfer of nutrients. Surprisingly, the phytoavailability of Pb increased in the most contaminated soil after adding dicalcium phosphate and the mixture of phosphates whereas a slight decrease was highlighted for Cd and Mn. Although minor changes in the phytoavailability of potentially toxic metals were obtained using calcium phosphates, the ability of ryegrass to accumulate Zn and Ca (up to 600 and 20,000 mg kg−1, respectively) make possible to qualify this plant as a bio ‘ore’ resource.

ACS Style

Marie Hechelski; Brice Louvel; Pierrick Dufrénoy; Alina Ghinet; Christophe Waterlot. Effects of Calcium Phosphates on the (Im)Mobilization of Metals and Nutrients, on the Biological Activity and on the Plant Health from Multi-contaminated Urban Soils. Water, Air, & Soil Pollution 2019, 230, 1 -17.

AMA Style

Marie Hechelski, Brice Louvel, Pierrick Dufrénoy, Alina Ghinet, Christophe Waterlot. Effects of Calcium Phosphates on the (Im)Mobilization of Metals and Nutrients, on the Biological Activity and on the Plant Health from Multi-contaminated Urban Soils. Water, Air, & Soil Pollution. 2019; 230 (8):1-17.

Chicago/Turabian Style

Marie Hechelski; Brice Louvel; Pierrick Dufrénoy; Alina Ghinet; Christophe Waterlot. 2019. "Effects of Calcium Phosphates on the (Im)Mobilization of Metals and Nutrients, on the Biological Activity and on the Plant Health from Multi-contaminated Urban Soils." Water, Air, & Soil Pollution 230, no. 8: 1-17.

Research article
Published: 24 April 2019 in Environmental Science and Pollution Research
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Aided phytoremediation was studied for 48 weeks with the aim of reducing extractable and phytoavailable toxic elements and producing potential marketable biomass. In this sense, biomass of ryegrass was produced under greenhouse on two contaminated garden soils that have been amended with two successive additions of phosphates. After the first addition of phosphates, seeds of ryegrass were sown and shoots were harvested twice. A second seedling was performed after carefully mixing the roots from the first production (used as compost), soils and phosphates. Forty-eight weeks after starting the experiments, the concentrations of Cd, Pb, Zn, Cu, Fe, and Mn extracted using the rhizosphere-based method were generally lower than those measured before the addition of phosphates and cultivation (except for Pb and Fe in the most contaminated soil). The concentrations of metals in the shoots of ryegrass from the second production were lower than those from the first (except for Al). The best results were obtained with phosphates and were the most relevant in the lowest contaminated soil, demonstrating that the available metal concentrations have to be taken into account in the management of contaminated soils. In view of the concentration of metals defined as carcinogens, mutagens, and reprotoxics (e.g., Cd, Pb) and those capable to be transformed into Lewis acids (e.g., Zn, Fe), the utilization of ryegrass in the revegetation of contaminated soils and in risk management may be a new production of marketable biomass. The development of phytomanagement in combination with this type of biomass coincided with the view that contaminated soils can still represent a valuable resource that should be used sustainably.

ACS Style

Marie Hechelski; Brice Louvel; Pierrick Dufrénoy; Alina Ghinet; Christophe Waterlot. The potential of ryegrass (Lolium perenne L.) to clean up multi-contaminated soils from labile and phytoavailable potentially toxic elements to contribute into a circular economy. Environmental Science and Pollution Research 2019, 26, 17489 -17498.

AMA Style

Marie Hechelski, Brice Louvel, Pierrick Dufrénoy, Alina Ghinet, Christophe Waterlot. The potential of ryegrass (Lolium perenne L.) to clean up multi-contaminated soils from labile and phytoavailable potentially toxic elements to contribute into a circular economy. Environmental Science and Pollution Research. 2019; 26 (17):17489-17498.

Chicago/Turabian Style

Marie Hechelski; Brice Louvel; Pierrick Dufrénoy; Alina Ghinet; Christophe Waterlot. 2019. "The potential of ryegrass (Lolium perenne L.) to clean up multi-contaminated soils from labile and phytoavailable potentially toxic elements to contribute into a circular economy." Environmental Science and Pollution Research 26, no. 17: 17489-17498.

Journal article
Published: 23 October 2018 in Environmental Science and Pollution Research
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Although growing vegetables in urban gardens has several benefits, some questions in relation with the safety of foods remain when the self-production is carried out on highly contaminated garden soils. To better assess the local population’s exposure to Cd and Pb induced by the past activities of a lead smelter, a participatory program was initiated in 115 private kitchen gardens located in northern France to assist gardeners in understanding their soil environment. The challenge included contributing to the database of urban garden soils with the collection of a large number of samples: 1525 crops grouped into 12 types (leaf, fruiting, root, stem and bulbous vegetables, tubers, cabbages, leguminous plants, celeriac, fresh herbs, fruits, and berries), 708 topsoils, and 52 samples of self-produced compost. The main results were as follows: (i) topsoils were strongly contaminated by Cd and Pb compared to regional reference values; (ii) great variability in physicochemical parameters and metal concentrations in topsoils; (iii) the highest concentrations of Cd and Pb for celeriac and fresh herbs and the lowest for fruits and fruiting vegetables; (iv) a high percentage of vegetables that did not comply with the European foodstuff legislation; and (v) most self-produced compost samples were strongly contaminated. This study aimed to raise awareness and generate functional recommendations to reduce human exposure and to provide useful data that could be considered in other environmental contexts.

ACS Style

Aurélie Pelfrêne; Karin Sahmer; Christophe Waterlot; Francis Douay. From environmental data acquisition to assessment of gardeners’ exposure: feedback in an urban context highly contaminated with metals. Environmental Science and Pollution Research 2018, 26, 20107 -20120.

AMA Style

Aurélie Pelfrêne, Karin Sahmer, Christophe Waterlot, Francis Douay. From environmental data acquisition to assessment of gardeners’ exposure: feedback in an urban context highly contaminated with metals. Environmental Science and Pollution Research. 2018; 26 (20):20107-20120.

Chicago/Turabian Style

Aurélie Pelfrêne; Karin Sahmer; Christophe Waterlot; Francis Douay. 2018. "From environmental data acquisition to assessment of gardeners’ exposure: feedback in an urban context highly contaminated with metals." Environmental Science and Pollution Research 26, no. 20: 20107-20120.

Original paper
Published: 22 October 2018 in Journal of the Iranian Chemical Society
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An improved procedure for the synthesis of meloxicam drug (methyl 4-hydroxy-2-methyl-2H-1,2-benzothiazol-2-amine-3-carboxylate 1,1-dioxide) was described in one-step using mainly impregnated montmorillonite K10 (MK10) with ZnCl2 as a heterogeneous catalyst. This innovative method was compared to the last described procedure employed in the manufacture of this anti-inflammatory drug by means of some metrics used in a first step of the evaluation process of the environmental impact of a chemical transformation. Apart from the yield, which was 90%, atom economy, waste, environmental factor, reaction mass efficiency and stoichiometric factor were calculated as 91.6%, 8.4%, 0, 8.1% and 1%, respectively. Interpretation of these metrics was given and highlighted the fact that the strategy used in the current study may be considered as an environmental-friendly and sustainable method that fits well in the green chemistry concepts.

ACS Style

Pierrick Dufrénoy; Alina Ghinet; Marie Hechelski; Adam Daïch; Christophe Waterlot. An innovative and efficient method to synthesize meloxicam in one-step procedure with respect to the green chemistry. Journal of the Iranian Chemical Society 2018, 16, 501 -509.

AMA Style

Pierrick Dufrénoy, Alina Ghinet, Marie Hechelski, Adam Daïch, Christophe Waterlot. An innovative and efficient method to synthesize meloxicam in one-step procedure with respect to the green chemistry. Journal of the Iranian Chemical Society. 2018; 16 (3):501-509.

Chicago/Turabian Style

Pierrick Dufrénoy; Alina Ghinet; Marie Hechelski; Adam Daïch; Christophe Waterlot. 2018. "An innovative and efficient method to synthesize meloxicam in one-step procedure with respect to the green chemistry." Journal of the Iranian Chemical Society 16, no. 3: 501-509.

Article
Published: 21 June 2018 in Ecotoxicology
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This study aimed to observe the type of asymmetry exhibited by Porcellio laevis sampled from 15 sites belonging to Tunisian industrialized areas. Physicochemical parameters such as pH, organic matter and CaCO3 contents were measured in soils. Moreover, Cd, Pb, Zn, and Cu concentrations were determined in both soils and woodlice. Additionally, 10 metrical traits were measured to evaluate the type of asymmetry on individuals: the basis, the second and the third articles of the antenna, the first article of the flagellum of the antenna and the merus, the carpus, and the propodus of the sixth and the seventh pereopods. Among the 531 measured individuals, 432 exhibited fluctuating asymmetry (FA) while the remaining individuals exhibited antisymmetry or directional asymmetry. The data obtained were analyzed using a multivariate statistical analysis. Contrary to our hypothesis, the results showed that individuals from contaminated sites have a low FA level, whereas those from uncontaminated sites have a high FA level, particularly females but with some exceptions. Variations in FA level in the traits and populations studied and its usefulness as a stress indicator were discussed.

ACS Style

Chedliya Ghemari; Anas Ayari; Nabil Hamdi; Christophe Waterlot; Francis Douay; Karima Nasri-Ammar. Measure of environmental stress on Porcellio laevis Latreille, 1804 sampled near active Tunisian industrial areas. Ecotoxicology 2018, 27, 729 -741.

AMA Style

Chedliya Ghemari, Anas Ayari, Nabil Hamdi, Christophe Waterlot, Francis Douay, Karima Nasri-Ammar. Measure of environmental stress on Porcellio laevis Latreille, 1804 sampled near active Tunisian industrial areas. Ecotoxicology. 2018; 27 (6):729-741.

Chicago/Turabian Style

Chedliya Ghemari; Anas Ayari; Nabil Hamdi; Christophe Waterlot; Francis Douay; Karima Nasri-Ammar. 2018. "Measure of environmental stress on Porcellio laevis Latreille, 1804 sampled near active Tunisian industrial areas." Ecotoxicology 27, no. 6: 729-741.

Review
Published: 10 April 2018 in ChemSusChem
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The concept of green chemistry was appeared in the USA in the nineties. Since the publication of the 12 principles of this concept, many reactions in organic chemistry have been developed, chemical products have been synthesized under environmentally friendly conditions. Lewis acids-mediated synthetic transformations are by far the most numerous, best studied. However, the use of certain Lewis acids may cause environmental and human health hazards problems. The aim of this review is to point out the evolution of the Lewis acid catalyzed reactions from homogeneous liquid phase to solid phase in order to obtain the expected organic molecules under green, safe conditions. Particular interests will be focused on the recent developments, applications of bio-sourced catalysts using plants.

ACS Style

Marie Hechelski; Alina Ghinet; Brice Louvel; Pierrick Dufrénoy; Benoît Rigo; Adam Daïch; Christophe Waterlot. From Conventional Lewis Acids to Heterogeneous Montmorillonite K10: Eco-Friendly Plant-Based Catalysts Used as Green Lewis Acids. ChemSusChem 2018, 11, 1249 -1277.

AMA Style

Marie Hechelski, Alina Ghinet, Brice Louvel, Pierrick Dufrénoy, Benoît Rigo, Adam Daïch, Christophe Waterlot. From Conventional Lewis Acids to Heterogeneous Montmorillonite K10: Eco-Friendly Plant-Based Catalysts Used as Green Lewis Acids. ChemSusChem. 2018; 11 (8):1249-1277.

Chicago/Turabian Style

Marie Hechelski; Alina Ghinet; Brice Louvel; Pierrick Dufrénoy; Benoît Rigo; Adam Daïch; Christophe Waterlot. 2018. "From Conventional Lewis Acids to Heterogeneous Montmorillonite K10: Eco-Friendly Plant-Based Catalysts Used as Green Lewis Acids." ChemSusChem 11, no. 8: 1249-1277.

Article
Published: 14 March 2018 in Environmental Monitoring and Assessment
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Different remediation techniques have been used to restore metal-contaminated sites, including stabilizing metals by adding amendments to the soils. This study experimented three biochars, made from wood and miscanthus, cultivated on contaminated and uncontaminated soils, used as amendments at a 2% application rate on a metal-contaminated soil for 9 months in laboratory-controlled conditions. The objective was to evaluate whether biochars were able to decrease the availability and human oral bioaccessibility of metals in an alkaline soil. To meet this goal, the modifications of the soil’s physicochemical parameters, metal distribution in soil, and human bioaccessibility were evaluated at different sampling times. The results showed that biochar application to the alkaline soil did not always decrease the soil metal availability, which challenges the value of using biochars in already slightly alkaline soils at a low application rate. However, differences in efficiency between the three biochars tested were highlighted. The biochar produced with miscanthus cultivated on uncontaminated soil led to higher soil metal bioaccessibility. Moreover, because of the absence of any increase in soil metal availability with the biochar produced from biomass cultivated on contaminated soil, the use of such biochars can be recommended for the remediation of contaminated soil.

ACS Style

Adeline Janus; Christophe Waterlot; Sophie Heymans; Christophe Deboffe; Francis Douay; Aurélie Pelfrêne. Do biochars influence the availability and human oral bioaccessibility of Cd, Pb, and Zn in a contaminated slightly alkaline soil? Environmental Monitoring and Assessment 2018, 190, 218 .

AMA Style

Adeline Janus, Christophe Waterlot, Sophie Heymans, Christophe Deboffe, Francis Douay, Aurélie Pelfrêne. Do biochars influence the availability and human oral bioaccessibility of Cd, Pb, and Zn in a contaminated slightly alkaline soil? Environmental Monitoring and Assessment. 2018; 190 (4):218.

Chicago/Turabian Style

Adeline Janus; Christophe Waterlot; Sophie Heymans; Christophe Deboffe; Francis Douay; Aurélie Pelfrêne. 2018. "Do biochars influence the availability and human oral bioaccessibility of Cd, Pb, and Zn in a contaminated slightly alkaline soil?" Environmental Monitoring and Assessment 190, no. 4: 218.

Original article
Published: 06 September 2017 in Environmental Earth Sciences
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In this study, data on several metals (Cd, Pb, Zn and Cu) in soil and isopod Porcellio laevis taken at 21 sites from the most important industrial areas in Tunisia (Bizerte, Nabeul, Zaghouan, Sfax and Gabes) were presented. Heavy metal concentrations in both soil samples and isopods were determined using atomic absorption spectrometry. Soil contamination was estimated using the contamination factor (CF). On the other hand, the bioaccumulation factor (BAF) was determined to estimate metal accumulation in isopods. The CF values show that the level of contamination varies between sampled soils, which may be due to the source of pollution at each site. The BAF values allow defining the order of accumulation in P. laevis which was classified for the majority of the sampled sites as a macro-concentrator of Cu and Zn and a deconcentrator of Cd with some exceptions. A principal component analysis (PCA) was conducted between soil properties (pH, OM and CaCO3) and metal concentrations in soils. Through PCA, we obtained four groups in which soils were distinguished by their physicochemical properties and their metal concentrations. Moreover, linear multiple regressions with a downward stepwise procedure were conducted to test the relationships between the physicochemical parameters and metal concentrations in both soils and isopods. Thus, positive correlations (0.78 < R2 < 0.99) were obtained for Pb considering dataset from the groups 1, 2 and for Zn with data of groups 2 and 3. Finally, results showed that P. laevis could be used as a bio-indicator for monitoring and reducing the impact of pollution in terrestrial ecosystems.

ACS Style

Chedliya Ghemari; Christophe Waterlot; Anas Ayari; Julie Leclercq; Francis Douay; Karima Nasri-Ammar. Assessment of heavy metals in soil and terrestrial isopod Porcellio laevis in Tunisian industrialized areas. Environmental Earth Sciences 2017, 76, 1 .

AMA Style

Chedliya Ghemari, Christophe Waterlot, Anas Ayari, Julie Leclercq, Francis Douay, Karima Nasri-Ammar. Assessment of heavy metals in soil and terrestrial isopod Porcellio laevis in Tunisian industrialized areas. Environmental Earth Sciences. 2017; 76 (17):1.

Chicago/Turabian Style

Chedliya Ghemari; Christophe Waterlot; Anas Ayari; Julie Leclercq; Francis Douay; Karima Nasri-Ammar. 2017. "Assessment of heavy metals in soil and terrestrial isopod Porcellio laevis in Tunisian industrialized areas." Environmental Earth Sciences 76, no. 17: 1.

Journal article
Published: 01 August 2017 in Measurement
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Adeline Janus; Anaïs Goulas; Aurélie Pelfrêne; Francis Douay; Christophe Waterlot. Determination of PAHs by ultra fast liquid chromatography using a core-shell technology – Application to their determination after using biochar as adsorbent. Measurement 2017, 106, 137 -142.

AMA Style

Adeline Janus, Anaïs Goulas, Aurélie Pelfrêne, Francis Douay, Christophe Waterlot. Determination of PAHs by ultra fast liquid chromatography using a core-shell technology – Application to their determination after using biochar as adsorbent. Measurement. 2017; 106 ():137-142.

Chicago/Turabian Style

Adeline Janus; Anaïs Goulas; Aurélie Pelfrêne; Francis Douay; Christophe Waterlot. 2017. "Determination of PAHs by ultra fast liquid chromatography using a core-shell technology – Application to their determination after using biochar as adsorbent." Measurement 106, no. : 137-142.

Research article
Published: 20 June 2017 in Environmental Science and Pollution Research
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The objective of this study was to evaluate the sorption efficiency of eight biochars, made from Miscanthus x giganteus cultivated on contaminated agricultural soil, in aqueous solutions contaminated with metals alone or mixed with polycyclic aromatic hydrocarbons. These biochars were produced in different pyrolysis conditions (temperature, 400/600 °C; heating rate, 5/10 °C min−1; duration, 45/90 min) and compared with an uncontaminated commercialized biochar made of wood. The physicochemical characterization of the Miscanthus biochars confirmed the impact of the pyrolysis on the biochar parameters with substantial differences between the biochars in terms of pH, cation exchange capacity, and specific surface area. The sorption experiment showed higher sorption efficiency of Cd, Pb, and Zn for the Miscanthus biochars produced at 600 °C compared with the biochars produced at 400 °C when the aqueous solutions were mono- or multicontaminated. Furthermore, the desorption study showed that the sorption process was largely irreversible. Therefore, the high sorption capacity of Miscanthus biochars and the low sorption reversibility confirmed that these biochars are a suitable sorbent for metals.

ACS Style

Adeline Janus; Aurélie Pelfrêne; Karin Sahmer; Sophie Heymans; Christophe Deboffe; Francis Douay; Christophe Waterlot. Value of biochars from Miscanthus x giganteus cultivated on contaminated soils to decrease the availability of metals in multicontaminated aqueous solutions. Environmental Science and Pollution Research 2017, 24, 18204 -18217.

AMA Style

Adeline Janus, Aurélie Pelfrêne, Karin Sahmer, Sophie Heymans, Christophe Deboffe, Francis Douay, Christophe Waterlot. Value of biochars from Miscanthus x giganteus cultivated on contaminated soils to decrease the availability of metals in multicontaminated aqueous solutions. Environmental Science and Pollution Research. 2017; 24 (22):18204-18217.

Chicago/Turabian Style

Adeline Janus; Aurélie Pelfrêne; Karin Sahmer; Sophie Heymans; Christophe Deboffe; Francis Douay; Christophe Waterlot. 2017. "Value of biochars from Miscanthus x giganteus cultivated on contaminated soils to decrease the availability of metals in multicontaminated aqueous solutions." Environmental Science and Pollution Research 24, no. 22: 18204-18217.