Cristina Zalazar

Scopus Publications

Vermifiltration for the treatment of water contaminated with acetochlor: A study on the processes’ contributions to its dissipation
Maria Emilia Fernandez, Carolina Elisabet Masin, Agustín Weimer, Eduardo Vidal, María de los Milagros Ballari, et al.
Journal of Environmental Management, 2026
Adsorption, degradation, and synergistic effects of pesticides in biomixtures containing vermicompost from agricultural and urban waste
Aldana Carolina Clebot, Florencia Valentina Magni, Maria Rosa Repetti, Cristina Susana Zalazar, Maria Emilia Fernandez
Journal of Water Process Engineering, 2025
Ecotoxicological Impact of Agro-Industry on Streams From a South American Basin: Amphibian Tadpoles as Indicators of Environmental Health
Ana P. Cuzziol Boccioni, Rafael C. Lajmanovich, María Rosa Repetti, Andrés M. Attademo, Cristina Susana Zalazar, et al.
Water Environment Research, 2025
This study aimed to evaluate complex contamination due to anthropic activities related to urban, industrial and agricultural activities in four streams of Entre Ríos‐Argentina (Las Conchas, LC; Espinillo, ES; Crespo, CR; Las Tunas, LT), being the first one the main water sources of subtropical riparian conservation reserve “Parque Escolar Rural Enrique Berduc” (PEREB). Physicochemical and bacteriological parameters and pesticide residues were studied on sediment and water samples. Toxicity bioassays on Rhinella arenarum tadpoles were performed to analyze ecotoxicological effects. Sediment from LC stream had the highest glyphosate concentration recorded in South American (5002 μg/kg). Bioassays showed lethality (100%) in undiluted CR and LT treatments. Sublethal effects included thyrotoxicosis, neurotoxicity, and genotoxicity on treated ES, CR, and LT tadpoles. These findings highlight the alarming environmental degradation threatening “One health,” emphasizing the need for sustainable practices and severe control by science and government to protect and ecological restore freshwater sources.Summary “Las Conchas” stream, within a natural protected area, showed the highest glyphosate concentration in sediment ever reported in South America. Several physicochemical parameters were outside the quality standards in most of the streams studied, suggesting severe pollution. Sublethal effects in tadpoles included hormonal, enzymatic, and genotoxic disruptions, along with stunted growth and delayed development. The findings emphasize the necessity for stricter agricultural management and monitoring to mitigate pollution in freshwater ecosystems.
Composting-vermicomposting of pigeon dropping waste. A contribution to the reduction of urban contamination
International Journal of Recycling of Organic Waste in Agriculture, 2025
Bio-transformation of poultry litter and activated sewage sludge to produce biomixtures for the remediation of water polluted with pesticides
Aldana Carolina Clebot, Maria Emilia Fernandez, Florencia Valentina Magni, Maria Rosa Repetti, Cristina Susana Zalazar
Chemosphere, 2024
Vermifiltration for removal of emerging contaminant EDTA (ethylenediaminetetraacetic acid). Kinetics models for adsorption, bio- and vermidegradation
Carolina Masin, Eduardo Vidal, Maria Emilia Fernandez, María de los Milagros Ballari, Cristina Zalazar
Journal of Environmental Chemical Engineering, 2024
Vermistabilization of excess sludge employing Eisenia fetida: Earthworm histopathological alterations and phytotoxicity evaluation
Sofía Nobili, Carolina E. Masin, Cristina S. Zalazar, Maia R. Lescano
Journal of Environmental Management, 2024
Earthworm injury test for in-situ biomonitoring of pesticides in biobeds
Sofía Lammertyn, Florencia V. Magni, Alejandra Durán, María Rosa Repetti, José Luis Godoy, et al.
Chemosphere, 2024
Bioremediation of hydrocarbon contaminated soil using local organic materials and earthworms
Sofia Nobili, Carolina Elisabet Masin, Cristina Susana Zalazar, Maia Raquel Lescano
Environmental Pollution, 2022
Biodegradation of pesticide-contaminated wastewaters from a formulation plant employing a pilot scale biobed
Maia Lescano, Nerina Fussoni, Eduardo Vidal, Cristina Zalazar
Science of the Total Environment, 2022
In this work, a pilot biobed was built up to treat pesticide-contaminated wastewaters discharged from a formulation plant. The pre-treated wastewater was spiked with additional pesticides in order to simulate a scenario of higher contamination: glyphosate, atrazine, imidacloprid, prometryn and carbendazim were added to reach a final Total Organic Carbon (TOC) of 70 mg L-1. An Intermediate Bulk Container (IBC) was filled with a biomixture of soil and foxtail millet stubble (50:50% v v-1), and 200 l of the wastewater was added to the system recycling tank. The recirculation to the IBC was established for 12 h. After that (Day 0), the recirculation was turned on during the assay only to maintain the moisture for 180 days. Biomixture and wastewater samples were taken periodically to analyse pesticides and phytotoxicity in both matrices. In addition, hydrolytic and phenoloxidase activities, total bacteria and yeast and fungi communities were determined in the biomixture. The designed pilot scale biobed allowed to treat wastewaters with high concentration of pesticides reaching a complete removal of glyphosate, AMPA, atrazine, carbendazim and prometryn at 180 days. A good degradation percentage of the recalcitrant imidacloprid was achieved (60%) and the biomixture showed enough biological activity to continue treating additional wastewater. The root elongation index from the germination test showed low toxicity on day 180 both in biomixture and wastewater. The millet stubble resulted an appropriate lignocellulosic material to be used in biobeds to treat a wide variety of pesticides. The application of the seed germination test proved to be a low cost and simple tool to determine the end point of process.
Effectiveness of a simple biomixture for the adsorption and elimination of 2,4-dichlorophenoxyacetic acid (2,4-D) herbicide and its metabolite, 2,4-dichlorophenol (2,4-DCP), for a biobed system
Maria Emilia Fernandez, María del Rosario Morel, Aldana Carolina Clebot, Cristina Susana Zalazar, María de los Milagros Ballari
Journal of Environmental Chemical Engineering, 2022
Poultry litter stabilization by two-stage composting-vermicomposting process: Environmental, energetic and economic performance
Rocio Vicentin, Carolina Elisabet Masín, Maia Raquel Lescano, Cristina Susana Zalazar
Chemosphere, 2021
Biomarkers response and population biological parameters in the earthworm Eisenia fetida after short term exposure to atrazine herbicide
Sofía Lammertyn, Carolina Elisabet Masín, Cristina Susana Zalazar, Maria Emilia Fernandez
Ecological Indicators, 2021
Degradation of chlorpyrifos formulation in water by the UV/H2O2 process: Lumped kinetic modelling of total organic carbon removal
Maia R. Lescano, Alejandro O. Lopez, Roberto L. Romero, Cristina S. Zalazar
Journal of Photochemistry and Photobiology A Chemistry, 2021
Earthworms to improve glyphosate degradation in biobeds
Maia R. Lescano, Carolina E. Masin, Alba R. Rodríguez, José L. Godoy, Cristina S. Zalazar
Environmental Science and Pollution Research, 2020
Approach to assess agroecosystem anthropic disturbance: Statistical monitoring based on earthworm populations and edaphic properties
C. Masin, A.R. Rodríguez, C. Zalazar, J.L. Godoy
Ecological Indicators, 2020
Bioconversion of agro-industrial wastes: Combined compost and vermicompost processes using Eisenia fetida for stabilization of poultry litter
C. Masin, María E. Fernández, M. Lescano, C. Zalazar
International Journal of Recycling of Organic Waste in Agriculture, 2020
Preparation and Characterization of Lignin Microparticles-in-Alginate Beads for Atrazine Controlled Release
Carlos Alberto Busatto, María Eugenia Taverna, Maia Raquel Lescano, Cristina Zalazar, Diana Alejandra Estenoz
Journal of Polymers and the Environment, 2019
Glyphosate and aminomethylphosphonic acid degradation in biomixtures based on alfalfa straw, wheat stubble and river waste
M.R. Lescano, L. Pizzul, M.d.P. Castillo, C.S. Zalazar
Journal of Environmental Management, 2018
Microparticles based on ionic and organosolv lignins for the controlled release of atrazine
María Eugenia Taverna, Carlos Alberto Busatto, Maia Raquel Lescano, Verónica Viviana Nicolau, Cristina Susana Zalazar, et al.
Journal of Hazardous Materials, 2018
Current knowledge of earthworm richness and distribution in Santa Fe Province, Argentina
Carolina Elisabet Masin, Fernando Roberto Momo, Cristina Susana Zalazar, Alba Rut Rodríguez
Revista De Biologia Tropical, 2018
Earthworms to assess the innocuousness of spent biomixtures employed for glyphosate degradation
Carolina E. Masin, Maia R. Lescano, Alba R. Rodríguez, José L. Godoy, Cristina S. Zalazar
Journal of Environmental Science and Health Part B Pesticides Food Contaminants and Agricultural Wastes, 2018
Advanced oxidation of commercial herbicides mixture: experimental design and phytotoxicity evaluation
Alejandro López, Andrea Coll, Maia Lescano, Cristina Zalazar
Environmental Science and Pollution Research, 2018
Water polluted with glyphosate formulations: Effectiveness of a decontamination process using Chlorella vulgaris growing as bioindicator
Ulises Reno, Luciana Regaldo, Eduardo Vidal, Melisa Mariani, Cristina Zalazar, et al.
Journal of Applied Phycology, 2016
Microcrustaceans: Biological models to evaluate a remediation process of glyphosate-based formulations
Ulises Reno, María Florencia Gutierrez, Melisa Longo, Eduardo Vidal, Luciana Regaldo, et al.
Water Air and Soil Pollution, 2015

Cristina Zalazar

RESEARCH INTERESTS

Scopus Publications