Phytotoxicity assessment of a methanolic coal dust extract in Lemna minor

Coronado-Posada, Nadia; Cabarcas-Montalvo, María; Olívero-Verbel, Jesús

doi:10.1016/j.ecoenv.2013.05.001

Cited by 18 publications

(5 citation statements)

References 25 publications

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“…Coal is a flammable sedimentary rock that is also a versatile fossil fuel, consisting of a complex and heterogeneous mixture of mostly organic matter [1][2][3]. Because of its combustibility, coal is one of the most important energy sources, and it plays an important role in the global economy [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

“…PHE concentrations were discovered to be close to the threshold levels. Coronado-Posada et al, [1] discovered that mining dust has phytotoxic effects on plant growth, indicating that coal dust should not be considered an inert material. Smirniakov et al, [13] conducted an in-depth analysis of coal dust explosion factors in Russian coal mines.…”

Section: Introductionmentioning

confidence: 99%

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Coal Dust Severity in a Power Plant: In-Situ, Analytical, and Numerical Assessments

Mohammad Nurizat Rahman

2023

ARNHT

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One of the most serious occupational hazards in the coal industry is coal dust. Previous research revealed that the vast majority of coal dust assessments were conducted in coal mines, resulting in a lack of understanding of the severity of coal dust during coal handling activities in power plants. Therefore, the severity of combustible coal dust in one of Malaysia's power plants was assessed using a comprehensive analysis that included qualitative observations, in-situ measurements, numerical simulations, laboratory tests, and data analysis. The designated locations include the coal conveyor hall (Zone 1, 2A, and 2B), milling (Zone 3), and bunkering areas (Zone 4). Relevant safety limits, as recommended in National Fire Protection Association (NFPA) 654, were used as guidelines where comparisons with the site data were made. The high coal dust accumulation rate in Zone 1 was revealed to be largely the result of inefficient ventilation performance, as confirmed by in-situ measurement and numerical simulation. Direct referencing to the relevant NFPA 654 guidelines finds the zones encompassing the coal conveyor hall are at “high risk” of fire and explosion. Further laboratory assessments on the dust samples in Zone 1 however reduces the earlier assessment to “medium risk” with the potential of “low risk” with regular housekeeping. Zones 3 and 4 were found to be “low risk” areas due to insignificant accumulation and good air flow management. Overall, the evaluation of the severity of combustible coal dust was successful in establishing the risk mapping for all zones. Cleaning frequencies were also proposed based on the coal dust accumulation rates and the risk mapping.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Coal Dust Severity in a Power Plant: In-Situ, Analytical, and Numerical Assessments

Mohammad Nurizat Rahman

2023

ARNHT

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“…La creciente evidencia a nivel nacional sobre los efectos de esta actividad minera sobre las poblaciones animales [5][6][7] y humanas 8 expuestas a residuos generados por las actividades de extracción, plantea la necesidad de generar mecanismos de regulación más estrictos y establecer políticas de producción más limpia y amigable con el medio ambiente. Diferentes estudios han logrado establecer que algunas de las enfermedades más prevalentes entre individuos ocupacionalmente expuestos a residuos de minería de carbón, tienen su origen en el estrés oxidativo generado por la exposición crónica.…”

Section: Introductionunclassified

Efecto modulador del polimorfismo hOGG1Ser326Cys sobre la frecuencia de micronúcleos en poblaciones ocupacionalmente expuestas a residuos de minería de carbón

Arteaga

Pérez

Quintana-Sosa

2017

revsal

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Introduction: Occupational exposure to coal mining residues can generate a wide range of DNA lesions potentially associated with carcinogenic processes and other work related diseases. Objetive: To evaluate the genotoxic effects in the DNA of individuals occupationally exposed to coal mining residues considering micronucleus formation in lymphocytes (MN) as endpoints for genotoxicity and the possible modulating effect of DNA repair polymorphism hOGG1 Ser326Cys (rs. 1052133). Methodology: The studied population was comprised by 74 exposed workers (GE) and 74 office non-exposed referents from general population as a control group (CG). The mean frequency of MN for GE was 8.8 ± 4.9, while for GC was 2.9 ± 4.0. In regard to time of exposure and MN frequency, individuals over 19 years of exposure presented a higher frequency of MN (13-20 MN) than individuals between 2 and 18 years of exposure (2-12 MN). Results: Frequency of MN discriminated by working areas, revealed that the individuals involved in mining activities had a higher MN frequency (11.3 ± 3.4), followed by those involved in embarking (9.0 ± 5.3) and coal carrying activities (8.3 ± 5.3). Modulatory activity of the hOGG1 Ser326Cys polymorphism on MN frequency in GE individuals, showed a lower frequency (8.32 ± 4.70) in individuals carrying the polymorphism Ser / Cys, Cys / Cys compared to Ser / Ser (9.06 ± 4.95) carriers. These findings on the possible protective activity of hOGG1 Ser326Cys in exposed populations provide new data to the increasing evidence about the protective role of this polymorphism. Conclusions: Data obtained showed that exposure to coal mining residues generates genotoxic effects that could be modulated by genetic variants of repair genes involved in removal of oxidative damage.

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“…Por un lado, están los estudios de higiene industrial que han empezado a brindar información sobre el grado de exposición a material en partículas (6-9); otro grupo de investigadores se ha dedicado a evaluar los efectos citogenéticos en humanos (10,11) y animales (12)(13)(14)(15). Por su parte, la mayoría de los estudios epidemiológicos han sido descriptivos, dejando de lado la exploración de asociaciones que podrían permitir acciones que promuevan mejoras en el ambiente laboral.…”

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Condiciones de trabajo y morbilidad entre mineros de carbón en Guachetá, Colombia: la mirada de los legos

Jiménez-Forero¹,

Zabala²,

Idrovo³

2015

biomedica

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Introducción. En Colombia, la investigación sobre las condiciones de trabajo y salud en la minería carbonífera es escasa y no toma en consideración la percepción de la población expuesta y sus comportamientos frente a los riesgos inherentes. Objetivo. Determinar la asociación entre las condiciones de trabajo y la morbilidad percibidas por los trabajadores de minas de carbón en Guachetá, Cundinamarca. Materiales y métodos. Se hizo un estudio transversal con 154 trabajadores seleccionados aleatoriamente del total registrado en la alcaldía municipal. Se indagó sobre las características sociodemográficas, y las condiciones de trabajo y de salud en las minas. Se estimaron las prevalencias de los trastornos respiratorios, osteomusculares y auditivos, y se exploraron las asociaciones entre algunas condiciones de trabajo y los eventos adversos con prevalencia superior al 30 % de forma bivariada y múltiple mediante regresiones de Poisson con varianza sólida. Resultados. Los trabajadores eran, en su mayoría, hombres, con edades entre los 18 y los 77 años. Los problemas de salud más frecuentemente reportados fueron: dolor lumbar (46,1 %), dolor miembros superiores (40,3 %), dolor en miembros inferiores (34,4 %), trastornos respiratorios (17,5 %) y problemas auditivos (13,6 %). Se registraron diferencias importantes en la percepción, dependiendo de la antigüedad laboral y las condiciones de trabajo, subterráneo o de superficie. Conclusión. Los riesgos más reconocidos fueron los relacionados con los trastornos osteomusculares, por ser más cercanos en el tiempo con respecto al trabajo realizado ("descuento temporal"). Se proponen acciones basadas en la identificación de rasgos psicológicos, para mejorar la percepción del riesgo entre los mineros del carbón.Palabras clave: condiciones de trabajo, morbilidad, minas de carbón, salud ocupacional, percepción social, Colombia. doi: http://dx.doi.org/10.7705/biomedica.v35i0.2439Work conditions and morbidity among coal miners in Guachetá, Colombia: The miners' perspective Introduction: Investigations in Colombia about work and health conditions in coal mining are scarce and few have focused on the perception of the exposed population and their behaviors in response to inherent risks. Objective: To determine the association between work conditions and the perception of morbidity among coal miners in Guachetá, Cundinamarca. Materials and methods: A cross-sectional study was performed with 154 workers selected randomly from the total registered with the municipality. Information about social and demographic characteristics and work and health conditions in the mines was gathered. The prevalence was estimated for respiratory, musculoskeletal and auditory disorders. The associations between certain work conditions, and events with a prevalence over 30% were explored using bivariate and multivariate analyses with Poisson regressions with robust variance. Results: Workers were mostly men. Ages ranged from 18 to 77 years. Most frequently reported health problems were: back pain (46.1 %), pai...

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Phytotoxicity assessment of a methanolic coal dust extract in Lemna minor

Cited by 18 publications

References 25 publications

Coal Dust Severity in a Power Plant: In-Situ, Analytical, and Numerical Assessments

Coal Dust Severity in a Power Plant: In-Situ, Analytical, and Numerical Assessments

Efecto modulador del polimorfismo hOGG1Ser326Cys sobre la frecuencia de micronúcleos en poblaciones ocupacionalmente expuestas a residuos de minería de carbón

Condiciones de trabajo y morbilidad entre mineros de carbón en Guachetá, Colombia: la mirada de los legos

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