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1.
Crit Rev Toxicol ; : 1-51, 2024 Oct 01.
Artigo em Inglês | MEDLINE | ID: mdl-39351770

RESUMO

Herbicide safeners are agrochemicals added to herbicide formulations to protect crops from herbicide damage without reducing the effectiveness of the herbicide against weeds. While safeners are typically structurally similar to their co-formulated herbicides, they are classified as "inert" in the United States, meaning they are not held to the same regulatory standards as the herbicides. This review systematically examines the toxicity of safeners, which is important given their large-scale global use and potential for exposure to wildlife, livestock, and humans. A systematic review of peer-reviewed literature identified only seven studies examining safener toxicity. Regulatory toxicity data, compiled from the European Chemicals Agency (ECHA) database, included data for 9 of the 18 commercial safeners. Most safeners have low acute ecotoxicity and mammalian toxicity; however, chronic effects and the underlying mechanism are less clear. Benoxacor showed enantioselective metabolism and depletion by drug-metabolizing enzymes. In conclusion, despite the widespread use of safeners, significant knowledge gaps exist regarding their toxicity. More research is needed to fully characterize the potential risks of safeners to human health and the environment. Regulatory agencies should consider reclassifying safeners as active ingredients to ensure adequate toxicity testing and risk assessment.

2.
Artigo em Inglês | MEDLINE | ID: mdl-39370465

RESUMO

The treatment of carbendazim-contaminated effluents is a challenge because of its complex composition and toxicity. A promising solution lies in biodegradation and the fungus Actinomucor elegans LBM 290 shows significant potential in this regard. Thus, the aim of this study was to biodegrade MBC by A. elegans LBM 290 in a liquid medium addressing the changes in the fungal morphology and protein production. The fungus A. elegans LBM 290 efficiently remove the fungicide carbendazim, with 86.6% removal within 8 days. This degradation is a combination of biodegradation (24.54%) and adsorption (62.08%). Exposure to carbendazim negatively affected the fungus, causing a decrease in biomass and morphological changes. Proteomic analysis revealed the fungal response to carbendazim stress through increased production of Cu-Zn superoxide dismutase, an antioxidant enzyme that combats oxidative stress, and the presence of a G protein subunit, suggesting participation in stress signaling pathways. These findings contribute to understanding the strategies of A. elegans LBM 290 to cope with carbendazim exposure in aquatic environments.

3.
Sci Rep ; 14(1): 22865, 2024 10 01.
Artigo em Inglês | MEDLINE | ID: mdl-39354118

RESUMO

Bees are often exposed to pesticides affecting physiological functions and molecular mechanisms. Studies showed a potential link between altered expression of energy metabolism related transcripts and increased homing flight time of foragers exposed to pesticides. In this study, we investigated the effects of thiamethoxam and pyraclostrobin on longevity, flight behavior, and expression of transcripts involved in endocrine regulation (hbg-3, buffy, vitellogenin) and energy metabolism (cox5a, cox5b, cox17) using radio frequency identification (RFID) technology and quantitative polymerase chain reaction. Parallel, a laboratory study was conducted investigating whether pesticide exposure alone without the influence of flight activity caused similar expression patterns as in the RFID experiment. No significant effect on survival, homing flight duration, or return rate of exposed bees was detected. The overall time foragers spent outside the hive was significantly reduced post-exposure. Irrespective of the treatment group, a correlation was observed between cox5a, cox5b, cox17 and hbg-3 expression and prolonged homing flight duration. Our results suggest that flight behavior can impact gene expression and exposure to pesticides adversely affects the expression of genes that are important for maintaining optimal flight capacity. Our laboratory-based experiment showed significantly altered expression levels of cox5a, cox6c, and cox17. However, further work is needed to identify transcriptional profiles responsible for prolonged homing flight duration.


Assuntos
Voo Animal , Fungicidas Industriais , Inseticidas , Neonicotinoides , Animais , Abelhas/efeitos dos fármacos , Abelhas/fisiologia , Abelhas/genética , Voo Animal/efeitos dos fármacos , Inseticidas/toxicidade , Fungicidas Industriais/toxicidade , Neonicotinoides/toxicidade , Tiametoxam , Nitrocompostos/toxicidade , Pólen , Regulação da Expressão Gênica/efeitos dos fármacos , Proteínas de Insetos/genética , Proteínas de Insetos/metabolismo
4.
Rev Environ Health ; 2024 Sep 17.
Artigo em Inglês | MEDLINE | ID: mdl-39279140

RESUMO

Atrazine is a widely used chlorinated triazine herbicide in agricultural settings, which has raised concerns over its potential adverse effects on human health. The extensive application of atrazine has resulted in its pervasive presence in the environment, contaminating soil, groundwater, and surface water. While earlier research suggested that atrazine is unlikely to pose a health concern, recent evidence has indicated the necessity to reassess this point of view. This review aims to assess the recent evidence on atrazine's adverse effects on human health, focusing on (i) Cancer, (ii) Metabolic Diseases, (iii) Reproductive System, (iv) Neural System, and (v) Epigenetic Effects. Strategies to mitigate atrazine contamination and limitations of previous studies are also discussed. We strongly believe that further investigation is necessary to determine the potential detrimental consequences of atrazine in humans, particularly in developing countries, where herbicides are widely used without stringent safety regulations. Therefore, the current review will be beneficial for guiding future research and regulatory measures concerning the use of atrazine.

5.
J Agric Food Chem ; 72(38): 20775-20782, 2024 Sep 25.
Artigo em Inglês | MEDLINE | ID: mdl-39258845

RESUMO

In the realm of crop protection products, ensuring the safety of pollinators stands as a pivotal aspect of advancing sustainable solutions. Extensive research has been dedicated to this crucial topic as well as new approach methodologies in toxicity testing. Hence, within the agricultural and chemical industries, prioritizing pollinator safety remains a constant objective during the development of predictive tools. One of these tools includes computational models like quantitative structure-activity relationships (QSARs) that are valuable in predicting the toxicity of chemicals. This research uses bee toxicity data to develop artificial neural network classification models for predicting honey bee acute toxicity. Bee toxicity data from 1542 compounds were used to develop models; the sensitivity and specificity of the best model were 0.90 and 0.91, respectively. These in silico models can aid in the discovery of next-generation crop protection products. These tools can guide the screening and selection of next-generation crop protection molecules with high margins of safety to pollinators, and candidates with favorable sustainability profiles can be identified at the early discovery stage as precursors to in vivo data generation.


Assuntos
Agroquímicos , Simulação por Computador , Relação Quantitativa Estrutura-Atividade , Abelhas/efeitos dos fármacos , Animais , Agroquímicos/química , Agroquímicos/toxicidade
6.
Environ Pollut ; : 125027, 2024 Sep 25.
Artigo em Inglês | MEDLINE | ID: mdl-39332802

RESUMO

Wetland communities are increasingly threatened by multiple stressors simultaneously, such as pesticides and salinization. We examined the effects of ecologically-relevant exposures to broad-spectrum insecticides and salinization on amphibian neurodevelopment, which is strongly linked to how organisms respond behaviorally to environmental change. Prior research showed that exposure to trace concentrations of an organophosphate pesticide (chlorpyrifos) altered the brain shape and behavior of larval and metamorphic amphibians. It is unknown whether brain shape is altered by additional pesticides and road salt. Using outdoor mesocosms, we tested whether salt (NaCl) and representatives from three pesticide families (organophosphates, pyrethroids, and neonicotinoids) altered tadpole (Lithobates pipiens) brain shape. Of the two organophosphates, chlorpyrifos induced relatively longer telencephalon lengths relative to body mass, consistent with previous studies, but malathion had no effect on brain shape. Of the two pyrethroids, permethrin, but not cypermethrin, increased telencephalon length. For the neonicotinoids, there were marginally significant effects of imidacloprid and thiamethoxam on telencephalon length. Thus, the impacts of pesticides on brain shape was not dictated by pesticide family. Exposure to relatively high concentrations of salt resulted in brains that were less wide but had longer optic tecta. Although we failed to find strong interactive effect of salt with pesticides, there was some weak, nonsignificant, evidence that exposure to salt masked responses to pesticides. Together, our results indicate that environmentally realistic levels of pesticides and salinization can alter larval brain shape. Our study highlights the importance of studying the impacts of naturally-occurring levels of pesticides and salinization on vertebrate neural development.

7.
Int J Biol Macromol ; 280(Pt 3): 136030, 2024 Sep 25.
Artigo em Inglês | MEDLINE | ID: mdl-39332563

RESUMO

Crop management techniques and sustainable agriculture offer a comprehensive farming method that incorporates social, economic, and ecological factors. Sustainable agriculture places a high priority on soil health, water efficiency, and biodiversity conservation in order to develop resilient and regenerative food systems that can feed both the current and future generations. Our goal in this review is to give a thorough overview of current developments in the use of polysaccharides as raw materials for the encapsulation of natural chemicals in nanoparticles as novel crop protection products. The search for recent research articles and latest reviews has been carried out through pubmed, google scholar, BASE as search engines. Offer cutting-edge solutions for sustainable crop management that satisfy the demands of an expanding population, comply with changing legal frameworks, and address environmental issues by encasing natural compounds inside polysaccharide-based nanoparticles. A variety of natural substances, such as essential oils, plant extracts, antimicrobials compounds and miRNA, can be included in these nanoparticles. These materials have many advantages, such as biocompatibility, biodegradability and controlled release of active compounds. Thanks to their action mechanism, they are able to mediate hormone signaling and gene expression in different plant physiological aspects, as well as enhance their tolerance to abiotic stress conditions. Sustainable agriculture can be supported by this type of treatments, correctly developing food safety through the production of non-toxic nanoparticles, low-cost industrial scale-up and the use of biodegradable materials. Polysaccharide-based nanoparticles have a wide range of uses in agriculture: they improve crop yields, encourage "eco-friendly" farming methods and can decrease the concentrations of active ingredient used, providing an accurate and affective dosage without damaging further species, as well as avoiding treatment resistance risks. These nanoparticles can also reduce the negative effects of chemical fertilizers and pesticides, contributing to the environmentally friendly agricultural development. Furthermore, the application of polysaccharide-based nanoparticles is consistent with the expanding trend of green and sustainable agriculture.

8.
Environ Sci Pollut Res Int ; 31(39): 51114-51125, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-39120815

RESUMO

Agrochemicals are substances used to prevent, destroy, or mitigate any pest. Their indiscriminate use can cause serious problems in ecosystems, contaminating surface and groundwater and affecting surrounding biota. However, in the environment, various natural processes such as biological degradation and photodegradation can mitigate their persistence and, consequently, their ecotoxicological impact. In this regard, this study aimed to obtain relevant data on the cytotoxic effects produced by pesticides on bioindicator plants. As observed in the literature review, cellular inhibition, nuclear anomalies, and micronucleus index are some of the different impacts commonly known from pesticides. These chemical substances can cause cytogenetic alterations in a plant bioassay. Plant bioindicators such as Allium cepa L, Vicia faba L, Pisum sativum L, Lactuca sativa L, and Lens culinaris Med are very important and effective experimental models for identifying the cytogenotoxicity of pesticides. These have been available for many years. However, they are still used today for their effectiveness in detecting and monitoring chemical substances such as agrochemicals.


Assuntos
Praguicidas , Praguicidas/toxicidade , Plantas/efeitos dos fármacos , Cebolas/efeitos dos fármacos
9.
Int J Biol Macromol ; 279(Pt 2): 135202, 2024 Aug 30.
Artigo em Inglês | MEDLINE | ID: mdl-39216580

RESUMO

Producing food in quantity and quality to meet the growing population demand is a challenge for the coming years. In addition to the need to improve the use and efficiency of conventional agricultural inputs, we face climate change and disparity in access to food. In this context, creating innovative, efficient, and ecologically approaches is necessary to transform this global scenario. Several delivery systems are being developed to encapsulate agrochemicals, aiming to improve the controlled release of active ingredients and protect them against environmental biotic and abiotic factors. Among these systems, hydrogel spheres are particularly notable for their ability to be fabricated from biodegradable materials, allowing the encapsulation of molecules, nanomaterials, and even organisms (e.g., bacteria and fungi). This review provides an overview of the latest progress in developing polysaccharide-based hydrogel spheres for agriculture. In addition, we describe methods for preparing hydrogel spheres and discuss the encapsulation and release of agricultural inputs in the field. Finally, we put hydrogel spheres into perspective and seek to highlight some current challenges in the field to spark new inspiration and improve the development of environmentally friendly and cost-effective delivery systems for the agricultural sector.

10.
Sci Total Environ ; 951: 175503, 2024 Nov 15.
Artigo em Inglês | MEDLINE | ID: mdl-39147045

RESUMO

Soil salinization is a gradual degradation process that begins as a minor problem and grows to become a significant economic loss if no control action is taken. It progressively alters the soil environment which eventually negatively affects plants and organism that were not originally adapted for saline conditions. Soil salinization arises from diverse sources such as side-effects of long-term use of agro-chemicals, saline parent rocks, periodic inundation of soil with saline water, etc. In Africa, soil salinization has not been adequately documented particularly in the croplands. The objective of this study was to identify trends of cropland salinization in Africa and how its relationship with long-term land use practices affected the soil environment. The study analysed soil salinization between 1965 and 2020 using measured electrical conductivity (EC), spatial modelling with environmental covariates, and national statistics on cropland expansion and application of mineral fertilizers, herbicides, and pesticides. The results showed increasing trends of EC in Africa due to climatic and land use drivers. Increasing trends of EC, which evidenced salinization, was found in 31 million hectares of topsoils and 18 million hectares of subsoils. About 2 million hectares of croplands were depicted with salinization and >25 million hectares at the risk of salinization in the arid and semi-arid areas. The study also found statistical relationships between semi-arid cropland salinization and trends of agro-chemical use and cropland sizes. There were significant (p < 0.001) positive correlations between semi-arid cropland salinization and trends of cropland expansion and applied nitrogenous fertilizers. It found that increasing trend of applied mineral nitrogenous fertilizers could double the odds of salinization in semi-arid croplands while cropland expansion could increase the odds of semi-arid cropland salinization by >10 %. These findings present ground-breaking baseline information for future works on sustainable land-use practices that can control cropland soil salinization in Africa.

11.
Int J Mol Sci ; 25(15)2024 Jul 29.
Artigo em Inglês | MEDLINE | ID: mdl-39125838

RESUMO

Climate change forces agriculture to face the rapidly growing virulence of biotrophic fungal pathogens, which in turn drives researchers to seek new ways of combatting or limiting the spread of diseases caused by the same. While the use of agrochemicals may be the most efficient strategy in this context, it is important to ensure that such chemicals are safe for the natural environment. Heterocyclic compounds have enormous biological potential. A series of heterocyclic scaffolds (1,3,4-thiadiazole, 1,3-thiazole, 1,2,4-triazole, benzothiazine, benzothiadiazine, and quinazoline) containing 2,4-dihydroxylaryl substituents were investigated for their ability to inhibit the growth and development of biotrophic fungal pathogens associated with several important cereal diseases. Of the 33 analysed compounds, 3 were identified as having high inhibitory potential against Blumeria and Puccinia fungi. The conducted research indicated that the analysed compounds can be used to reduce the incidence of fungal diseases in cereals; however, further thorough research is required to investigate their effects on plant-pathogen systems, including molecular studies to determine the exact mechanism of their activity.


Assuntos
Grão Comestível , Compostos Heterocíclicos , Doenças das Plantas , Doenças das Plantas/microbiologia , Doenças das Plantas/prevenção & controle , Grão Comestível/microbiologia , Compostos Heterocíclicos/farmacologia , Compostos Heterocíclicos/química , Fungos/efeitos dos fármacos , Fungicidas Industriais/farmacologia , Fungicidas Industriais/química , Tiadiazóis/farmacologia , Tiadiazóis/química
12.
Front Public Health ; 12: 1408096, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-39145171

RESUMO

The study aimed to assess the extent of pesticide use among potato-growing farmers in Bangladesh and its relationship with their knowledge, attitude, and socio-demographic characteristics. Data were collected from 553 farmers using a semi-structured questionnaire through multistage random sampling. Bivariate analysis was conducted to examine the relationship between the frequency of pesticide use and various socio-demographic factors. Results showed that out of 321 different pesticide brands reported, 50.5% were registered, while 47.7% were unregistered and 1.9% were banned. Among the registered pesticides, 5.6% were highly hazardous, 24.8% were moderately hazardous, and 6.2% were slightly hazardous as per World Health Organization category. A high percentage (96%) of farmers reported using pesticides in their fields, with 16.6% applying pesticides more than five times in a cropping season. Data revealed that majority of the farmers were aware of the negative effect of pesticides on health and environment. Most farmers used hand towels (77.9%) and ordinary shirts (70.0%) to cover their bodies to avoid pesticide exposure. Inappropriate disposal of empty pesticide containers was also observed. Negative binomial regression analysis revealed significant positive associations between the frequency of pesticide application and potato productivity, rate of fertilizer application, area of land owned by farmers, and their knowledge about the negative effects of pesticides on human health. The study suggests adopting integrated pest management practices, developing pest-resistant potato varieties, ensuring safe handling practices and disposal as well as stringent enforcement of laws to mitigate pesticide externalities and hence ensure sustainability in agriculture.


Assuntos
Fazendeiros , Conhecimentos, Atitudes e Prática em Saúde , Praguicidas , Solanum tuberosum , Humanos , Bangladesh , Masculino , Adulto , Inquéritos e Questionários , Feminino , Pessoa de Meia-Idade , Exposição Ocupacional , Agricultura
13.
Trends Plant Sci ; 2024 Aug 09.
Artigo em Inglês | MEDLINE | ID: mdl-39127600

RESUMO

Precise agrochemical delivery to crops is vital for sustainable agricultural productivity. Recently, Liu et al. developed highly biocompatible smart microcarriers for precise agrochemical delivery to plants that can effectively provide nutrition while reducing runoff. This innovative and precise agrochemical delivery system represents a significant advancement in efficient and eco-friendly crop cultivation practices.

14.
Trends Biotechnol ; 2024 Aug 10.
Artigo em Inglês | MEDLINE | ID: mdl-39127599

RESUMO

An additional 100 million tons/year of lignin coproduct will result when lignocellulosic biomass is processed in biorefineries to fiber, sugars, biofuels, and bioproducts. This will double the amount of lignin already generated from pulping and paper production. Unlike pulping that results in lignosulphonate (88% of total) or Kraft lignin (9%), aqueous-based biorefining leaves behind non-sulfonated lignin and aromatic molecules. This new type of lignin provides opportunities for large volume agricultural uses such as controlled-release carriers and soil amendments as well as feedstocks for new chemistries that lead to molecular building blocks for the chemical industry and to precursors for sustainable aviation biofuels.

15.
Heliyon ; 10(12): e32434, 2024 Jun 30.
Artigo em Inglês | MEDLINE | ID: mdl-38975170

RESUMO

Our knowledge of fluorine's unique and complex properties has significantly increased over the past 20 years. Consequently, more sophisticated and innovative techniques have emerged to incorporate this feature into the design of potential drug candidates. In recent years, researchers have become interested in synthesizing fluoro-sulphonamide compounds to discover new chemical entities with distinct and unexpected physical, chemical, and biological characteristics. The fluorinated sulphonamide molecules have shown significant biomedical importance. Their potential is not limited to biomedical applications but also includes crop protection. The discovery of novel fluorine and Sulfur compounds has highlighted their importance in the chemical sector, particularly in the agrochemical and medicinal fields. Recently, several fluorinated sulphonamide derivatives have been developed and frequently used by agriculturalists to produce food for the growing global population. These molecules have also exhibited their potential in health by inhibiting various human diseases. In today's world, it is crucial to have a steady supply of innovative pharmaceutical and agrochemical molecules that are highly effective, less harmful to the environment, and affordable. This review summarizes the available information on the activity of Fluorine and Sulphonamide compounds, which have proven active in pharmaceuticals and agrochemicals with excellent environmental and human health approaches. Moreover, it focuses on the current literature on the chemical structures, the application of fluorinated sulphonamide compounds against various pathological conditions, and their effectiveness in crop protection.

16.
J Agric Food Chem ; 72(31): 17153-17165, 2024 Aug 07.
Artigo em Inglês | MEDLINE | ID: mdl-39051451

RESUMO

The different configurations of chiral pesticides generally have significant influence on their biological activities. Chiral agrochemicals with high optical purities have become a prominent topic in the research field of new pesticides due to their advantages including lower toxicity, higher efficiency, and reduced residue levels. However, most commercially available pesticides that possess chiral elements are still used in their racemic forms. To date, asymmetric catalysis has emerged as a versatile tool for the enantioselective synthesis of various chiral agrochemicals and novel chiral pesticide active molecules. This perspective provides a comprehensive overview of the applications of diverse asymmetric catalytic approaches in the facile preparation of numerous novel pesticide active molecules, and our own outlook on the future development of this highly active research direction is also presented at the end of this review.


Assuntos
Praguicidas , Praguicidas/química , Praguicidas/síntese química , Catálise , Estereoisomerismo , Estrutura Molecular
17.
J Environ Manage ; 366: 121518, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-38986377

RESUMO

The use of agrochemical inputs has significantly enhanced agricultural yields in China; however, their excessive utilization has also caused a range of environmental issues. This paper examines the costs associated with reducing agrochemicals by employing shadow prices, which represent the value of the marginal product of agrochemicals, to further develop cost-effective environmental policy measures for reducing their usage. To this end, the shadow prices of agrochemicals have been assessed by adopting a newly developed convex expectile regression approach and using statistical data from 31 provinces in China spanning from 2005 to 2020. Furthermore, the present study investigates the disparities between shadow prices and market prices for different agrochemicals across various regions in China. The findings suggest that the costs of reducing chemical fertilizers are higher than those of reducing pesticides and plastic films. Moreover, the results indicate that central China exhibits relatively high potential for decreasing agrochemical usage. Finally, these findings can inform the Chinese government's restructuring of producer support and environmental policy in a cost-effective way to mitigate agrochemicals use in the future. Additionally, the research method employed in this study holds potential for extension to other agrochemicals-dependent countries.


Assuntos
Agricultura , Agroquímicos , China , Agricultura/economia , Fertilizantes , Praguicidas
18.
J Ethnobiol Ethnomed ; 20(1): 71, 2024 Jul 31.
Artigo em Inglês | MEDLINE | ID: mdl-39085935

RESUMO

BACKGROUND: Pests and diseases are a major contributor to yield losses in sub-Saharan Africa, prompting smallholder farmers to seek cost-effective, accessible and ecologically friendly alternatives for crop protection. This study explored the management of pests and diseases affecting crops across eight selected villages in Ehlanzeni District, Mpumalanga Province, South Africa. METHODS: A total of 120 smallholder farmers were purposefully selected utilising the snowball technique. Information on the management of plant pests and diseases was collected through interviews and focus group discussions using semi-structured interview schedules. Ethnobotanical indices, including relative frequency of citation (RFC), use-value (UV) and informant consensus factor (Fic), were used to quantify and rank the plants used for crop protection in the study area. RESULTS: Twenty-three plant species (16 naturalised exotics and seven indigenous plants) belonging to 16 families were used for managing pests (vertebrates and invertebrates) and diseases (fungal and bacterial related) affecting crops in the study area. The dominant (100%) crops cultivated by the participants were Allium cepa L., Mangifera indica L., Solanum lycopersicum L. and Zea mays L. The RFC value ranged from 0.08 to 0.83 and the three most popular plants for crop protection were Capsium annuum L. (0.83), A. cepa (0.63) and Dichrostachys cinerea (L.) Wight & Arn. (0.43). In terms of the UV, the five most promising plants used as biocontrol were Tulbaghia violacea (0.13), A. cepa (0.12), C. annuum L. (0.09), Solanum campylacanthum Hochst. Ex A.Rich.(0.09) and Pinus pinaster (0.08). Based on the Fic, four categories were established and dominated by fungal diseases (0.64). Furthermore, T. violacea and A. cepa were the most often mentioned plants used against fungal conditions. Other categories cited were bacterial diseases (0.3), invertebrate pests (0.11) and vertebrate pests (0.14), an indication that smallholder farmers had limited agreement or common knowledge about the plants used for their management. The preparation methods included maceration (38%), decoction (38%) and burning (24%). Foliar application (67%) and soil drenching (33%) were used for administering plant extracts during the management of crop pests and diseases. CONCLUSION: The study highlights the importance of botanicals and associated indigenous knowledge among smallholder farmers in Mpumalanga Province, South Africa. It is pertinent to explore the valorisation of these botanicals by generating empirical data on their biological efficacies and phytochemical profiles.


Assuntos
Produtos Agrícolas , Etnobotânica , Fazendeiros , Doenças das Plantas , África do Sul , Humanos , Pessoa de Meia-Idade , Masculino , Feminino , Adulto , Idoso , Controle de Pragas/métodos , Agricultura/métodos
19.
Materials (Basel) ; 17(14)2024 Jul 13.
Artigo em Inglês | MEDLINE | ID: mdl-39063770

RESUMO

The increase in the world population and the intensification of agricultural practices have resulted in the release of several contaminants into the environment, especially pesticides and heavy metals. This article reviews recent advances in using adsorbent and catalytic materials for environmental decontamination. Different materials, including clays, carbonaceous, metallic, polymeric, and hybrid materials, are evaluated for their effectiveness in pollutant removal. Adsorption is an effective technique due to its low cost, operational simplicity, and possibility of adsorbent regeneration. Catalytic processes, especially those using metallic nanoparticles, offer high efficiency in degrading complex pesticides. Combining these technologies can enhance the efficiency of remediation processes, promoting a more sustainable and practical approach to mitigate the impacts of pesticides and other agricultural pollutants on the environment. Therefore, this review article aims to present several types of materials used as adsorbents and catalysts for decontaminating ecosystems affected by agricultural pollutants. It discusses recent works in literature and future perspectives on using these materials in environmental remediation. Additionally, it explores the possibilities of using green chemistry principles in producing sustainable materials and using agro-industrial waste as precursors of new materials to remove contaminants from the environment.

20.
Saúde debate ; 48(141): e8714, abr.-jun. 2024. tab, graf
Artigo em Português | LILACS-Express | LILACS | ID: biblio-1565850

RESUMO

RESUMO O presente estudo teve por objetivo analisar a exposição aos agrotóxicos e os danos à saúde dos trabalhadores das plantações de cana-de-açúcar em Pernambuco. Trata-se de pesquisa participante desenvolvida em territórios rurais de cinco municípios com forte expressão em área plantada de cana-de-açúcar. Os dados primários foram produzidos em oficinas com trabalhadores rurais para construção de diagnóstico rural participativo, analisados mediante condensação de significados e interpretados à luz do referencial teórico da epidemiologia crítico latino-americana. Os resultados estão apresentados em três seções: i) Fluxograma do trabalho nas plantações de cana-de-açúcar; ii) Exposição aos agrotóxicos utilizados nas lavouras; iii) Danos à saúde do trabalhador. Conclui-se que a exposição permanente aos agrotóxicos envolve o trabalho nas plantações de cana-de-açúcar e emerge de um construto histórico e socioambiental, em que se encontram subsumidos os modos de vida dos territórios sob o domínio do agronegócio canavieiro. Recomendam-se políticas públicas de fomento à agricultura familiar com diversificação, escoamento e distribuição da produção agroecológica, além do fortalecimento da Atenção Primária à Saúde e de ações integradas de vigilância epidemiológica, sanitária, ambiental e do trabalhador.


ABSTRACT This study aims to analyze exposure to pesticides and harm to the health of workers on sugarcane plantations in Pernambuco. This participatory research was conducted in rural territories of five municipalities with a strong presence in sugarcane-planted areas. The primary data were produced in workshops with rural workers to construct a participatory rural diagnosis, analyzed through condensation of meanings, and interpreted in light of the theoretical framework of Latin American critical epidemiology. The results are presented in three sections: i) Flowchart of work on sugarcane plantations; ii) Exposure to pesticides used on crops; iii) Harm to worker's health. We conclude that permanent exposure to pesticides involves working on sugarcane plantations and emerges from a historical and socio-environmental construct in which the ways of life of the territories under the control of sugarcane agribusiness are subsumed. Public policies are recommended to promote family farming with diversification, flow, distribution of agroecological production, and strengthening primary health care and integrated epidemiological, health, environmental, and worker surveillance actions.

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