Article
Environmental Sciences
Laise M. Carvalho, Antonio F. Soares-Filho, Maciel S. Lima, Joao F. Cruz-Filho, Taisa C. M. Dantas, Geraldo E. Luz Jr
Summary: The uncontrolled use of pesticides poses a threat to the environment and public health. Researchers studied the remediation of the herbicide 2,4-D by supporting WO(3) and TiO(2) on a molecular sieve, with the sample W-Ti-S(25) showing the highest photocatalytic activity under ultraviolet irradiation.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Environmental Sciences
Ramesh Vinayagam, Saivedh Ganga, Gokulakrishnan Murugesan, Gayathri Rangasamy, Ruchi Bhole, Louella Concepta Goveas, Thivaharan Varadavenkatesan, Niyam Dave, Adithya Samanth, V. Radhika Devi, Raja Selvaraj
Summary: In this study, ferric oxide nanoparticles impregnated with activated carbon from Ulva prolifera biomass were synthesized and used for the adsorption of 2,4-Dichlorophenoxyacetic acid (2,4-D). The nanocomposite exhibited a jagged, irregular surface with pores and showed the presence of carbon, oxygen, and iron. Various characterization techniques confirmed the structural and functional properties of the UPAC-Fe2O3 nanocomposite. Adsorption experiments revealed that the nanocomposite followed the Langmuir isotherm and pseudo-second-order kinetic model, indicating monolayer chemisorption. Furthermore, thermodynamic analysis demonstrated the spontaneous and feasible endothermic nature of the adsorption process.
Article
Environmental Sciences
M. F. Salcedo, A. Y. Mansilla, S. L. Colman, M. J. Iglesias, V. A. Alvarez, C. A. Casalongue
Summary: 2,4-D is harmful to dicotyledonous plants and poses potential risks to non-target plant species, indicating the need for adsorbents to mitigate its damage to sensitive plants.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Engineering, Environmental
Amber M. White, Michelle E. Nault, Katherine D. McMahon, Christina K. Remucal
Summary: Laboratory studies fail to accurately predict transformation rates of pesticides due to the absence of environmental conditions. This study combines laboratory and field data to identify the dominant loss processes of 2,4-dichlorophenoxyacetic acid (2,4-D) herbicide in lakes. Irradiation studies show direct photodegradation of 2,4-D, but modeling suggests it is negligible in environmental conditions. Field campaigns and microcosm experiments reveal sediment microbial communities as responsible for 2,4-D degradation in lakes. The persistence of transformation products is not a major concern according to unsuccessful quantification in both laboratory and field studies.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Multidisciplinary Sciences
Elizangela Paz de Oliveira, Amanda Flavia da Silva Rovida, Juliane Gabriele Martins, Sonia Alvim Veiga Pileggi, Zelinda Schemczssen-Graeff, Marcos Pileggi
Summary: The study found that Pseudomonas sp. CMA-7.3 exhibited an efficient antioxidative response system to the widely used herbicide 2,4-D in agriculture, balancing hydrogen peroxide production through coordination of multiple enzymes. This discovery is significant for understanding the bacterial response mechanism to 2,4-D.
Review
Environmental Sciences
Ana Paula Da Silva, Elizete Rodrigues Morais, Elton Celton Oliveira, Nedia de Castilhos Ghisi
Summary: This meta-analysis study evaluates the toxic effects of 2,4-dichlorophenoxyacetic acid (2,4-D) on various animal species. The results indicate a significant increase in mortality rate for animals exposed to environmental concentrations of 2,4-D, with fish and birds being more susceptible. Larval and adult animals are more sensitive to 2,4-D, and immersion exposure has the greatest impact. Furthermore, commercial formulations have a higher mortality rate compared to analytical standards.
ENVIRONMENTAL POLLUTION
(2022)
Article
Engineering, Environmental
Amber M. White, Michelle E. Nault, Katherine D. McMahon, Christina K. Remucal
Summary: This study combines laboratory and field data to identify the dominant loss processes of the herbicide 2,4-D in lakes, demonstrating the importance of microbial and photochemical degradation. Attempts to quantify transformation products were unsuccessful, but results suggest that their persistence is not a major concern.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Review
Environmental Sciences
Rocio Giron-Navarro, Ivonne Linares-Hernandez, Elia Alejandra Teutli-Sequeira, Veronica Martinez-Miranda, Fortunata Santoyo-Tepole
Summary: Organochlorine pesticides, particularly 2,4-dichlorophenoxyacetic acid (2,4-D), have raised concerns worldwide due to their toxicity to human health and the environment at low concentrations and their persistence in the environment. Various advanced oxidation processes (AOPs) have been developed to degrade 2,4-D, with ozonation and electrochemical methods showing high degradation efficiencies but also high energy costs. Photocatalytic and photo-Fenton processes show optimal efficiencies for degradation and mineralization, while the Fenton process is a cost-effective option with lower degradation efficiencies. Evaluating the strengths and weaknesses of these AOPs can help in selecting the most suitable operational conditions for effective pollutant degradation in wastewater treatment.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Environmental Sciences
Isabele Baima Ferreira Freitas, Allan Pretti Ogura, Davi Gasparini Fernandes Cunha, Aline Silva Cossolin, Murilo de Souza Ferreira, Bianca Veloso Goulart, Cassiana Carolina Montagner, Evaldo Luiz Gaeta Espindola
Summary: The research simulated the pollution process of 2,4-D herbicide in a tropical stream, revealing its retention effect in the water and different levels of toxicity on Ceriodaphnia silvestrii and Eruca sativa L. seeds. The study indicates the importance of reviewing and updating herbicide guidelines and criteria to prevent potential ecological risks.
ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY
(2022)
Article
Biochemistry & Molecular Biology
Timur Iasakov
Summary: This study classifies and names the tf.d gene clusters using comparative genomic and phylogenetic approaches, revealing their evolutionary trajectories and structural diversity, and assessing the contribution of various evolutionary processes.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Agronomy
Amanda dos Santos Souza, Jessica Ferreira Lourenco Leal, Jacob Samuel Montgomery, Mirella Farinelli Ortiz, Andre Lucas Simoes Araujo, Sarah Morran, Marcelo Rodrigues Alves de Figueiredo, Ana Claudia Langaro, Luiz Henrique Saes Zobiole, Scott Jay Nissen, Todd Adam Gaines, Camila Ferreira de Pinho
Summary: A physiological rapid response was found in a biotype of Conyza sumatrensis, which may contribute to its resistance to 2,4-D herbicide. The resistance is mainly attributed to the reduced translocation of 2,4-D in the plants. The resistant plants also show lower metabolic capacity for 2,4-D compared to the susceptible plants.
PEST MANAGEMENT SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Marta Wozniak-Karczewska, Anna Parus, Tomasz Ciesielski, Artur Trzebny, Radoslaw Szumski, Wiktoria Wilms, Jan Homa, Grzegorz Framski, Daniel Baranowski, Robert Frankowski, Agnieszka Zgola-Grzeskprime Owiak, Michal Niemczak, Miroslawa Dabert, Andras Tancsics, Lukasz Chrzanowski
Summary: This study aims to increase the hydrophobicity of herbicides by pairing them with betaine and modified betaine zwitterions. The research results show that the adsorption rate of hydrophobic ions is high, while the adsorption rate of hydrophilic ions is low. Additionally, hydrophobic surface-active derivatives of betaines play a significant role in environmental and plant toxicity.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Article
Chemistry, Multidisciplinary
Yunhao Gao, Zhiyuan Zhou, Xi Chen, Yuyang Tian, Yan Li, Huachen Wang, Xuan Li, Xueyang Yu, Yongsong Cao
Summary: The study demonstrated that herbicide-intercalated Zn-Al hydrotalcites can effectively reduce the volatilization and leaching risks of herbicides, providing a novel insight into the facile fabrication of controlled release formulations for pesticides.
Article
Environmental Sciences
Ramesh Vinayagam, Shraddha Pai, Gokulakrishnan Murugesan, Thivaharan Varadavenkatesan, Selvaraju Narayanasamy, Raja Selvaraj
Summary: The study introduced a novel approach by utilizing Spondias dulcis leaf extract to fabricate a magnetic activated charcoal/Fe2O3 nanocomposite for the efficient removal of 2,4-D from aqueous solutions. Optimization using BoxBehnken Design and Artificial Neural Network showed a high adsorption efficiency of 98.12% at specific conditions. The nanocomposite exhibited excellent performance with a maximum adsorption capacity of 255.10 mg/g, surpassing previous reports for magnetic nano adsorbents in 2,4-D removal.
Article
Environmental Sciences
Sonia Gaaied, Miguel Oliveira, Angela Barreto, Abdelfattah Zakhama, Mohamed Banni
Summary: This study is the first to report the DNA damage, gene regulation, and ocular developmental toxicity in zebrafish larvae exposed to environmentally relevant concentrations of 2,4-D herbicide. The findings suggest that high concentrations of 2,4-D can damage the DNA integrity of zebrafish larvae and affect the expression of genes involved in apoptosis and DNA repair. Additionally, early exposure to 2,4-D can also disrupt the structure of the larvae's retina.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)