Revista Internacional de Contaminación Ambiental最新文献

Comparative study of bioconcentration potential and biomarkers in Biomphalaria glabrata exposed to ZnO nanoparticles and bulk ZnO 暴露于纳米氧化锌颗粒和大块氧化锌的草履虫的生物浓缩潜力和生物标志物比较研究

Revista Internacional de Contaminación Ambiental Pub Date : 2024-08-09 DOI: 10.20937/rica.54998

Ornela Paola Ghiglione, María del Carmen Martinez, N. R. Verrengia Guerrero, A. Cochón

{"title":"Comparative study of bioconcentration potential and biomarkers in Biomphalaria glabrata exposed to ZnO nanoparticles and bulk ZnO","authors":"Ornela Paola Ghiglione, María del Carmen Martinez, N. R. Verrengia Guerrero, A. Cochón","doi":"10.20937/rica.54998","DOIUrl":"https://doi.org/10.20937/rica.54998","url":null,"abstract":"The uptake of nanoparticles (NPs) by aquatic invertebrates can lead to adverse health effects. The aims of the present study were: 1) to investigate the bioconcentration potential of ZnO NPs or its bulk analogous in Biomphalaria glabrata gastropods by measuring the soft tissue Zn content, and 2) to determine the responses elicited by the exposed snails through the analysis of recognized biomarkers of effect at the subcellular level. Snails exposed to 5 mg/L ZnO NPs or bulk ZnO for 48 h showed a significant higher soft tissue Zn content than control animals, with no significant differences between NPs- and bulk-treated snails. No significant differences were observed in the levels of lipid peroxidation and in the activities of acetylcholinesterase, carboxylesterase and catalase by 48 h-exposure to ZnO NPs or bulk ZnO with respect to control organisms. However, ZnO exposure induced a significant decrease in glutathione tissue content, without a nano-specific effect. The results as a whole encourage further studies to better understand the impact that engineered NPs may have on freshwater invertebrate species.","PeriodicalId":506819,"journal":{"name":"Revista Internacional de Contaminación Ambiental","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141925390","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Manifestaciones anómalas de mercurio atmosférico (GEM) y su relación con la actividad geotérmica de Pathé, estado de Hidalgo (México) 大气汞的异常表现（GEM）及其与墨西哥伊达尔戈州 Pathé地热活动的关系。

Revista Internacional de Contaminación Ambiental Pub Date : 2024-07-23 DOI: 10.20937/rica.55090

Abigail Jiménez-Franco, C. Canet, Pablo Higueras, Teresa Pi-Puig

{"title":"Manifestaciones anómalas de mercurio atmosférico (GEM) y su relación con la actividad geotérmica de Pathé, estado de Hidalgo (México)","authors":"Abigail Jiménez-Franco, C. Canet, Pablo Higueras, Teresa Pi-Puig","doi":"10.20937/rica.55090","DOIUrl":"https://doi.org/10.20937/rica.55090","url":null,"abstract":"La zona geotérmica de Pathé (Hidalgo, México) presenta valores anómalos de mercurio atmosférico. Las anomalías detectadas (Hg en el aire) coinciden espacialmente con zonas de alteración argílica avanzada (antiguas minas de caolín); éstas constituyen fuentes naturales de emisiones de dicho metal pesado, cuyo enriquecimiento geológico se debe a los procesos de interacción agua-roca. Al tomar en cuenta que esta alteración argílica avanzada indica antiguas zonas de condensación de vapor, se deduce que el Hg se movilizó principalmente como gas y no se puede descartar que actualmente se siga emitiendo de la misma manera. Ahora bien, desde una perspectiva ambiental y de salud, los valores máximos de Hg atmosférico medidos en la zona de estudio (36 ng/m3) quedan muy por debajo del umbral considerado peligroso para la salud humana. No obstante, es recomendable que se realicen monitoreos sistemáticos de Hg atmosférico en el país -con fines ambientales-, en las numerosas fuentes potenciales de emisiones naturales o antrópicas de dicho metal. De acuerdo con los resultados de este trabajo, la metodología que proponemos puede ser una herramienta efectiva, sencilla y rápida para la exploración geotérmica y minera, ya que, mediante su aplicación, es posible identificar de manera indirecta ciertas áreas de alteración hidrotermal que emiten Hg.","PeriodicalId":506819,"journal":{"name":"Revista Internacional de Contaminación Ambiental","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141810607","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Risk assessment for the consumption of the freshwater turtle Podocnemis unifilis with Hg in an indigenous population living close to mining area in the brazilian Amazon 巴西亚马逊河流域采矿区附近土著居民食用含汞淡水龟 Podocnemis unifilis 的风险评估

Revista Internacional de Contaminación Ambiental Pub Date : 2024-07-04 DOI: 10.20937/rica.54944

Luciano Vieira Dias da Silva, Simone de Fátima Pinheiro Pereira, Cristiane Costa Carneiro, Ronaldo Magno Rocha, Hemilton Cardoso da Costa, Cleber Silva e Silva, Alan Marcel Fernandes de Souza, Thiago de Melo e Silva

{"title":"Risk assessment for the consumption of the freshwater turtle Podocnemis unifilis with Hg in an indigenous population living close to mining area in the brazilian Amazon","authors":"Luciano Vieira Dias da Silva, Simone de Fátima Pinheiro Pereira, Cristiane Costa Carneiro, Ronaldo Magno Rocha, Hemilton Cardoso da Costa, Cleber Silva e Silva, Alan Marcel Fernandes de Souza, Thiago de Melo e Silva","doi":"10.20937/rica.54944","DOIUrl":"https://doi.org/10.20937/rica.54944","url":null,"abstract":"Podocnemis unifilis is an important source of protein for indigenous communities in the Brazilian Amazon. However, contaminants associated to the mining activities can be affecting this species and, in turn, its consumers. The objective of this study was to evaluate the risk of Hg contamination that the Kayapó indigenous people are exposed to through the consumption of P. unifilis in a region affected by mining in the Baú river basin, municipality of Altamira-PA, Brazilian Amazon. Muscle (edible) samples of the collected specimens were digested in a solution of concentrated nitric acid with hydrogen peroxide using a microwave digestion system. Inductively coupled plasma emission spectrometry with hydrogen generation was used to quantify HgT. The health risk assessment was performed according to the methodology proposed by the U.S. Environmental Protection Agency. The muscle of P. unifilis presented an average concentration of 0.022 (µg/g wet weight) HgT, a value within the allowed level for the dietary pattern. The risk assessment for human health shows that the consumption of P. unifilis presents low risks of intoxication by Hg for the indigenous people. The results show a reduced risk of exposure to Hg due to the consumption of P. unifilis by indigenous people. However, if mining activity continues to spread across the region, since Hg biomagnifies in the trophic chain and can represent a serious risk for human health and biota.","PeriodicalId":506819,"journal":{"name":"Revista Internacional de Contaminación Ambiental","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141677254","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Distribución estacional de indicadores fecales en una playa recreacional del litoral Atlántico de Argentina 阿根廷大西洋沿岸休闲海滩粪便指标的季节性分布。

Revista Internacional de Contaminación Ambiental Pub Date : 2024-07-02 DOI: 10.20937/rica.54956

M. Prario, M. Lucero, A. V. Saicha, M. L. Patat, Mónica B. Espinosa, F. Cecchi

{"title":"Distribución estacional de indicadores fecales en una playa recreacional del litoral Atlántico de Argentina","authors":"M. Prario, M. Lucero, A. V. Saicha, M. L. Patat, Mónica B. Espinosa, F. Cecchi","doi":"10.20937/rica.54956","DOIUrl":"https://doi.org/10.20937/rica.54956","url":null,"abstract":"Durante el 2018 se evaluaron las concentraciones y distribución de dos indicadores de contaminación fecal en una playa recreacional localizada en el litoral atlántico de Argentina. Utilizando la técnica de membrana filtrante, se determinó la presencia de Escherichia coli y Enterococcus spp. en muestras de arena seca, sedimentos húmedos y agua de mar, mediante monitoreos periódicos considerando la abundancia de lluvia en días previos y valores de temperatura ambiente (máxima y mínima). Las muestras fueron analizadas según fecha de colecta (temporada estival; temporada invernal). Con el propósito de identificar la procedencia de los indicadores seleccionados se empleó la relación: E. coli / enterococos (EC/ENT). Los valores de concentración de ambos indicadores no evidenciaron diferencias significativas entre las temporadas como en los sitios de colecta, a excepción de E. coli, con mayor concentración en el agua durante el periodo estival. Por su parte, la máxima abundancia se identificó en los meses de verano y en los tres sitios muestreados. Por otra parte, el 58 % de las muestras analizadas superaron los límites admisibles. Al analizar la procedencia de la contaminación, se observó una composición de origen mixto (animal y antrópico) en ambas temporadas. Las colonias de EC y ENT persistieron a lo largo del año siendo la arena su mejor reservorio, mientras que los factores ambientales considerados no incidieron en la distribución de dichas bacterias. La prevalencia de sus unidades formadoras de colonias (UFC) por encima de lo recomendable y ocurridas en el periodo de uso intensivo, caracterizarían a este sector de riesgo sanitario durante la temporada evaluada.","PeriodicalId":506819,"journal":{"name":"Revista Internacional de Contaminación Ambiental","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141688099","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Fitotoxicidad y fitorremediación de un suelo contaminado con gasolina utilizando plantas de girasol asistidas por bacterias rizosféricas nativas 利用向日葵植物在本地根瘤菌的辅助下对受汽油污染的土壤进行植物毒性和植物修复

Revista Internacional de Contaminación Ambiental Pub Date : 2024-07-02 DOI: 10.20937/rica.55039

Patsy Jackeline Almazan-Casteñada, Alejandro Alarcón, Óscar García-Barradas, Caliope Mendarte-Alquisira, R. Ferrera-Cerrato

{"title":"Fitotoxicidad y fitorremediación de un suelo contaminado con gasolina utilizando plantas de girasol asistidas por bacterias rizosféricas nativas","authors":"Patsy Jackeline Almazan-Casteñada, Alejandro Alarcón, Óscar García-Barradas, Caliope Mendarte-Alquisira, R. Ferrera-Cerrato","doi":"10.20937/rica.55039","DOIUrl":"https://doi.org/10.20937/rica.55039","url":null,"abstract":"La fitorremediación es una alternativa para limpiar suelos contaminados utilizando plantas y sus microorganismos asociados. El presente trabajo evaluó la fitotoxicidad y la fitorremediación de un suelo contaminado con gasolina por plantas de girasol (Helianthus annuus L.) asistida con bacterias rizosféricas nativas. Esta investigación contempló tres fases experimentales partiendo de un suelo artificialmente contaminado con gasolina. La primera fase evaluó la germinación de semillas de girasol y su crecimiento en un suelo contaminado (0, 200, 400, 800, 1600, 2400 y 3200 mg/kg), observándose la germinación y la tolerancia de las plántulas en todas las concentraciones de gasolina, a los 20 días. En la segunda fase se aislaron bacterias totales del suelo contaminado y se caracterizaron mediante pruebas bioquímicas relacionadas con el crecimiento vegetal y se identificaron molecularmente. La gasolina inhibió el crecimiento bacteriano, y se seleccionaron 10 cepas con capacidad promotora del crecimiento vegetal, sobresaliendo los géneros Bacillus, Streptomyces, Pseudomonas, Priestia, Massilia y Sphingobium. La tercera fase consistió en un bioensayo de fitorremediación del suelo contaminado (0, 1600 y 3200 mg/kg) inoculando plantas con las 10 bacterias aisladas de la fase 2, aplicadas en consorcio. A los 60 días, a pesar de no influir en el crecimiento vegetal, las bacterias disminuyeron significativamente la presencia del contaminante en el suelo (~50 % remoción). La inoculación de girasol con bacterias nativas es una alternativa para reducir la contaminación de gasolina en el suelo.","PeriodicalId":506819,"journal":{"name":"Revista Internacional de Contaminación Ambiental","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141687858","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The effects of climate warming on large-scale atmospheric systems of the Northern Hemisphere 气候变暖对北半球大尺度大气系统的影响

Revista Internacional de Contaminación Ambiental Pub Date : 2024-06-14 DOI: 10.20937/atm.53303

Zahra Mahavarpour, Javad Khoshhal Dastjerdi, Seyed Abolfazl Masoudian, Mohammad Ali Nasresfahani

{"title":"The effects of climate warming on large-scale atmospheric systems of the Northern Hemisphere","authors":"Zahra Mahavarpour, Javad Khoshhal Dastjerdi, Seyed Abolfazl Masoudian, Mohammad Ali Nasresfahani","doi":"10.20937/atm.53303","DOIUrl":"https://doi.org/10.20937/atm.53303","url":null,"abstract":"In the present study, we examine the impact of climate warming on the variability of the main climatic drivers in the northern hemisphere, using 40 years (1979-2018) of ERA-Interim reanalysis data. We applied Sen’s slope estimator and the Mann-Kendall significance test to identify regions with significant variability of 500-1000 hPa thickness. The findings reveal that climate warming is particularly pronounced at latitudes ranging from 80º to 90º and also in subtropical regions. The increase in thickness is most notable in mid-latitudes during the summer season, owing to climate warming. The steeper trend slope observed in autumn indicates a faster warming rate compared to other seasons. Moreover, despite climate warming, significant trends in large-scale atmospheric circulation systems demonstrate the strengthening of the Siberian high-pressure in winter and autumn. Additionally, a segment of the core of the Azores high-pressure system has also experienced strengthening during winter. Conversely, the monsoon and Aleutian low-pressure systems have weakened in spring and winter, respectively. The subtropical high-pressure system exhibits a positive and significant trend in winter, spring, and summer, aligning with the positive significant trends observed in atmospheric thickness, thereby confirming the effects of climate warming.","PeriodicalId":506819,"journal":{"name":"Revista Internacional de Contaminación Ambiental","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141338642","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Potential of chitosan and activated carbon biocomposites for removing enrofloxacin and oxytetracycline from water 壳聚糖和活性炭生物复合材料去除水中恩诺沙星和土霉素的潜力

Revista Internacional de Contaminación Ambiental Pub Date : 2024-06-13 DOI: 10.20937/rica.55051

José Manuel Molina-Amaya, J. A. Ávila-Reyes, E. A. Delgado-Alvarado, L. S. González-Valdez, R. Torres-Ricario, Marlon Rojas-López, N. Almaraz-Abarca, Marcela Verónica Gutiérrez-Velázquez

{"title":"Potential of chitosan and activated carbon biocomposites for removing enrofloxacin and oxytetracycline from water","authors":"José Manuel Molina-Amaya, J. A. Ávila-Reyes, E. A. Delgado-Alvarado, L. S. González-Valdez, R. Torres-Ricario, Marlon Rojas-López, N. Almaraz-Abarca, Marcela Verónica Gutiérrez-Velázquez","doi":"10.20937/rica.55051","DOIUrl":"https://doi.org/10.20937/rica.55051","url":null,"abstract":"Enrofloxacin (ENRO) and oxytetracycline (OTC) are two antibiotics, which are difficult to remove by conventional water treatment methods. The characteristics of the biocomposites suggest that they could represent an alternative for the removal of this type of substances through adsorption processes. The current study aimed to determine and compare the potential of biocomposites formed with chitosan and different concentrations of activated carbon (AC) with a particle size of 500 nm, prepared from agave bagasse, to remove enrofloxacin and oxytetracycline solved in water. The effectiveness of the addition of different concentrations of AC (0, 0.5, 2 and 5% w/v) to chitosan was evaluated by morphological analysis using scanning electron microscopy (SEM). The detection of the characteristic functional groups carried out by Fourier transform infrared spectroscopy (FTIR) indicated that the nanoparticles of AC were attached in the chitosan biocomposite, and stable chemical crosslinking was formed during the polymerization process. The removal test of ENRO (10 mg/mL) and OTC (10 mg/mL) in a water was performed by a gradient method of high-performance liquid chromatography (HPLC). The results showed that the addition of AC to chitosan formed a biocomposite with maximum capacity to remove 59.3% of OTC (contact time 2 h at 100 rpm, 4 g biocomposite/L solution, pH 6-7, 30 ºC), and a maximum removal of 50.3% of ENRO (contact time 2 h at 100 rpm, 4 g biocomposite/L solution, pH 6, 30 ºC). Biocomposites formed by chitosan and agave activated carbon can support the development of tools for the removal of recalcitrant antibiotics from water bodies.","PeriodicalId":506819,"journal":{"name":"Revista Internacional de Contaminación Ambiental","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141349177","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

'Regulaciones para la descarga de aguas residuales de México: comparacion con otros países y su cumplimiento en plantas de tratamiento seleccionadas 墨西哥的废水排放法规：与其他国家的比较以及选定处理厂的合规情况"。

Revista Internacional de Contaminación Ambiental Pub Date : 2024-06-07 DOI: 10.20937/rica.54362

L. E. Domínguez-Montero, Héctor Mario Poggi-Varaldo, R. O. Cañizares-Villanueva, América Alejandra Padilla Viveros, Noemí Rinderknecht-Seijas, Sergio Caffarel-Méndez, E. De La Cruz-Burelo

{"title":"'Regulaciones para la descarga de aguas residuales de México: comparacion con otros países y su cumplimiento en plantas de tratamiento seleccionadas","authors":"L. E. Domínguez-Montero, Héctor Mario Poggi-Varaldo, R. O. Cañizares-Villanueva, América Alejandra Padilla Viveros, Noemí Rinderknecht-Seijas, Sergio Caffarel-Méndez, E. De La Cruz-Burelo","doi":"10.20937/rica.54362","DOIUrl":"https://doi.org/10.20937/rica.54362","url":null,"abstract":"El propósito de este estudio fue: i) describir y comparar las normas oficiales mexicanas de descarga de aguas residuales 1996 y 2021 (norma antigua, NA y norma nueva NN, respectivamente); ii) comparar las dos normas oficiales mexicanas para la descarga de aguas residuales con las regulaciones de Brasil, Estados Unidos, Canadá y la Unión Europea (UE); así como determinar el índice de permisividad de los contaminantes básicos y del subconjunto de los metales pesados y los cianuros, también llamados “otros contaminantes”; y iii) analizar el cumplimiento de las NN y NA mexicanas con una muestra de resultados analíticos de los efluentes de 25 plantas de tratamiento de aguas residuales municipales que operan en un área metropolitana de México. Los resultados de esta investigación sugieren que la nueva NOM 2021 es muy cercana a la norma previa 1996 en términos de permisividad, y a su vez ambas son muchísimo más permisivas comparadas con las de los países desarrollados del Tratado entre México, Estados Unidos y Canadá (T-MEC) y de la UE. Los altos límites máximos permisibles de la mayoría de los contaminantes en ambas normas mexicanas podrían causar impactos negativos en los cuerpos de agua y en los bienes nacionales. Se recomienda la actualización y expansión de las NOM-002 y 003, y eventualmente la revisión de la propia NOM-001-2021 para eliminar o reducir el riesgo para la salud y el ambiente de los contaminantes del agua y homologar la calidad del recurso agua en el contexto de los países integrantes del T-MEC.","PeriodicalId":506819,"journal":{"name":"Revista Internacional de Contaminación Ambiental","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141371832","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ionoma radical de Sedum praealtum por microanálisis SEM-EDX en presencia de arsénico y cadmio y la adición de agentes quelantes 通过 SEM-EDX 显微分析法，研究在砷和镉以及添加螯合剂的情况下，Sedum praealtum 的自由基离子组。

Revista Internacional de Contaminación Ambiental Pub Date : 2024-06-05 DOI: 10.20937/rica.54898

A. Cruz-Orea, María Fernanda López-Gómez, A. Rodríguez-Dorantes

{"title":"Ionoma radical de Sedum praealtum por microanálisis SEM-EDX en presencia de arsénico y cadmio y la adición de agentes quelantes","authors":"A. Cruz-Orea, María Fernanda López-Gómez, A. Rodríguez-Dorantes","doi":"10.20937/rica.54898","DOIUrl":"https://doi.org/10.20937/rica.54898","url":null,"abstract":"La ionómica considera la evaluación cualitativa y cuantitativa de la composición elemental y sus cambios en la fisiología de los organismos. La aplicación de la técnica de microscopía electrónica de barrido con la evaluación espectroscópica de la energía de dispersión por rayos X (SEM-EDX: Scanning Electron Microscopy with Energy-Dispersive X-ray Spectroscopy) es un análisis adecuado de ella, ya que informa sobre la localización y composición química elemental en muestras biológicas. En este trabajo se analizó el ionoma radical de Sedum praealtum bajo la presencia de arsénico y cadmio con la adición de agentes quelantes. Se evaluó la distribución elemental semicuantitativa de P, K, Ca, Cu, Fe, Mn, Mg, Ni, Zn, Mo, As y Cd por microanálisis SEM-EDX en fragmentos de raíz agrupados en cuatro regiones desde el ápice hasta el inicio de la zona de diferenciación. Se obtuvo como patrón de distribución importante el de la sinergia entre el As y el Cd y el agente quelante, el ácido etilenodiaminatetraacético (EDTA). Se obtuvo el mayor porcentaje elemental bajo la sinergia entre el As y el Cd y el agente quelante, el ácido etilendiaminotetraacético (EDTA) como patrón de la inmovilización elemental en la superficie radical de esta especie, que dio evidencia de los sitios de absorción y transporte de nutrientes en las zonas radicales.","PeriodicalId":506819,"journal":{"name":"Revista Internacional de Contaminación Ambiental","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141386430","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Production of vegetables with biofertilizers based on native microorganisms: A case study in Tixtla, Guerrero, Mexico 使用基于本地微生物的生物肥料生产蔬菜：墨西哥格雷罗州 Tixtla 案例研究

Revista Internacional de Contaminación Ambiental Pub Date : 2024-05-16 DOI: 10.20937/rica.55011

Alba Berenice Castro Don Juan, Yanet Romero-Ramírez, Miguel Ángel Rodríguez-Barrera, Alejandro Bolaños Dircio, Jeiry Toribio Jiménez

{"title":"Production of vegetables with biofertilizers based on native microorganisms: A case study in Tixtla, Guerrero, Mexico","authors":"Alba Berenice Castro Don Juan, Yanet Romero-Ramírez, Miguel Ángel Rodríguez-Barrera, Alejandro Bolaños Dircio, Jeiry Toribio Jiménez","doi":"10.20937/rica.55011","DOIUrl":"https://doi.org/10.20937/rica.55011","url":null,"abstract":"In agriculture, the use of fertilizers has increased due to the high demand for food by humanity, causing negative impacts because of high production costs and soil contamination. We evaluated five biofertilizers based on native microorganisms promoters of plant growth (NMPPG) as an alternative to the fertilizers used by small vegetable producers. The evaluation was carried out with three types of vegetables (lettuce, celery and epazote) in the Juan Berbera Catalán Irrigation Unit made up by producers from the community of Tixtla, Guerrero. The results show that Rhizobium sp. R01 (Tx3), Azotobacter sp. C3 (Tx1) and Bacillus licheniformis M2-7 (Tx5) used as biofertilizers promote germination and considerably increase fresh weight in these crops, and Azospirillum sp. M9 (Tx2) and Trichoderma sp. ABC1 (Tx4) present significant differences with the negative and chemical control. The yield of lettuce, celery and epazote was favored using biofertilizers, which can be considered a good alternative to apply to these crops, likewise, the price of biofertilizers (5 liters per Tx) compared to the fertilizer DAP-18-46-00 (50 kg) used by the same producers is $1,200.00 vs. $2,000.00 MXN per hectare produced respectively. In conclusion, the biofertilizers used herein represent a feasible alternative for farmers without disregarding the need for technical specialists and producers to identify optimal conditions that support the sustained application and management of biofertilizers.","PeriodicalId":506819,"journal":{"name":"Revista Internacional de Contaminación Ambiental","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140966814","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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