Monte-Carlo human health risk assessment of mercury emissions from a MSW gasification plant

Lonati, Giovanni; Zanoni, Francesca

doi:10.1016/j.wasman.2012.10.015

Cited by 19 publications

(12 citation statements)

References 49 publications

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“…El uso de funciones de probabilidad permite que la incertidumbre de los datos de entrada y los parámetros del modelo se contabilicen (13).…”

Section: Discussionunclassified

“…Según los protocolos de la EPA (12), el cálculo probabilístico del riesgo implica un muestreo aleatorio a partir del cual se genera cada una de las distribuciones de las variables incluidas en la exposición, siendo el método de Montecarlo uno de los métodos probabilísticos más ampliamente utilizados (13). La aplicación del análisis probabilístico en las evaluaciones de riesgos para la salud humana, es un desarrollo relativamente nuevo facilitado por el avance en las técnicas de muestreo estadístico y el aumento en la velocidad y la capacidad de los equipos capaces de responder a las necesidades computacionales intensivas propias de una simulación de Montecarlo.…”

Section: Caracterización Del Riesgounclassified

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Valoración del riesgo en salud para un grupo poblacional de la ciudad de Cali-Colombia por exposición a Pb, Cd, Hg, 2-4D y Diuron debido al consumo de agua potable y alimentos

et al. 2015

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Contribución de los autores:Ghisliane Echeverry: coordinación del proyecto, diseño del muestreo, recolección, preparación y coordinación del análisis de muestras, análisis de resultados, discusión y redacción del manuscrito Andrés Mauricio Zapata: apoyo en el cálculo de la valoración del riesgo Martha Isabel Páez, Fabián Méndez y Miguel Ricardo Peña: tutorías y aportes a la discusión Miguel Ricardo Peña: revisión del manuscrito Introducción. La exposición a contaminantes como plaguicidas y metales pesados, se asocia a problemas de salud. Diversos estudios revelan la presencia de estos contaminantes en Cali; sin embargo, no existe información sobre las rutas principales de esa exposición y su riesgo implícito. Objetivo. Estimar los riesgos asociados a la exposición a cadmio, plomo y mercurio, y a los plaguicidas ácido 2,4-diclorofenoxiacético y diuron, debida al consumo de agua potable y alimentos en un grupo de población de Cali. Materiales y métodos. Se obtuvieron datos ambientales e información sobre la población, y se valoró el riesgo empleando los modelos de la Environmental Protection Agency (EPA) de los Estados Unidos.Resultados. Las concentraciones de los contaminantes evaluados estuvieron por debajo de las permisibles establecidas por el Ministerio de Ambiente, Vivienda y Desarrollo Territorial de Colombia (3 μg/L -1 de cadmio; 10 μg/L -1 de plomo; 1 μg/L -1 de mercurio; 1 μg/L -1 de ácido 2,4 diclorofenoxiacético; 1 μg/L -1 de diuron). En las muestras de pescado "manteco" (Peprilus snyderi), se detectaron concentraciones de cadmio entre 20 y 80 μg/kg -1 por debajo del límite permisible establecido por la Organización Mundial de la Salud (100 μg/kg -1 ). Los resultados de la valoración mostraron que el riesgo cancerígeno y no cancerígeno atribuible a la ingestión de alimentos y de agua potable con presencia de los contaminantes evaluados, estaba por debajo de los valores máximos admisibles según la EPA. Conclusiones. Se cree que los hallazgos sobre contaminantes en estudios anteriores, pueden deberse a eventos puntuales de contaminación y se recomienda vigilar la bocatoma de agua y emitir alertas tempranas. El reporte sobre la presencia de cadmio en las muestras de pescado, sugiere que el control de la calidad de los alimentos por parte de las entidades reguladoras debe mejorar.Palabras clave: medición de riesgo, salud pública, exposición a plaguicidas, contaminación de alimentos, contaminación del agua, metales pesados.doi: http://dx.doi.org/10.7705/biomedica.v35i0.2464Evaluation of human health risk for a population from Cali, Colombia, by exposure to lead, cadmium, mercury, 2,4-dichloro-phenoxyacetic acid and diuron associated with water and food consumption Introduction: Exposure to pollutants such as pesticides and heavy metals has been linked to health problems. Several studies have revealed the presence of these contaminants in Cali; however, there is no information available about the main routes of exposure and risk of these contaminants. Objective: To estimate the risk associated with the intak...

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“…El uso de funciones de probabilidad permite que la incertidumbre de los datos de entrada y los parámetros del modelo se contabilicen (13).…”

Section: Discussionunclassified

Section: Caracterización Del Riesgounclassified

Valoración del riesgo en salud para un grupo poblacional de la ciudad de Cali-Colombia por exposición a Pb, Cd, Hg, 2-4D y Diuron debido al consumo de agua potable y alimentos

et al. 2015

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“…To provide information on the probability of these events, the results are best expressed as a probability distribution simulated by randomizing the emission rate, O&G-activity duration, and meteorological conditions through application of the Monte Carlo method. The Monte Carlo approach is widely used in addressing problems associated with emissions from irregularly emitting sources, as it provides more realistic estimates of health risk (Li, Huang, and Zou 2008;Lonati and Zanoni 2013). Monte Carlo has been used to determine protective zones for intermittent irregular sources (Balter and Faminskaya 2016).…”

Section: Receptorsmentioning

confidence: 99%

Evaluating potential human health risks from modeled inhalation exposures to volatile organic compounds emitted from oil and gas operations

Holder

Hader

Avanasi

et al. 2019

Journal of the Air & Waste Management Association

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Some states and localities restrict siting of new oil and gas (O&G) wells relative to public areas. Colorado includes a 500-foot exception zone for building units, but it is unclear if that sufficiently protects public health from air emissions from O&G operations. To support reviews of setback requirements, this research examines potential health risks from volatile organic compounds (VOCs) released during O&G operations.We used stochastic dispersion modeling with published emissions for 47 VOCs (collected onsite during tracer experiments) to estimate outdoor air concentrations within 2,000 feet of hypothetical individual O&G facilities in Colorado. We estimated distributions of incremental acute, subchronic, and chronic inhalation non-cancer hazard quotients (HQs) and hazard indices (HIs), and inhalation lifetime cancer risks for benzene, by coupling modeled concentrations with microenvironmental penetration factors, human-activity diaries, and health-criteria levels.Estimated exposures to most VOCs were below health criteria at 500-2,000 feet. HQs were < 1 for 43 VOCs at 500 feet from facilities, with lowest values for chronic exposures during O&G production. Hazard estimates were highest for acute exposures during O&G development, with maximum acute HQs and HIs > 1 at most distances from facilities, particularly for exposures to benzene, 2-and 3-ethyltoluene, and toluene, and for hematological, neurotoxicity, and respiratory effects. Maximum acute HQs and HIs were > 10 for highest-exposed individuals 500 feet from eight of nine modeled facilities during O&G development (and 2,000 feet from one facility during O&G flowback); hematologic toxicity associated with benzene exposure was the critical toxic effect. Estimated cancer risks from benzene exposure were < 1.0 × 10 −5 at 500 feet and beyond.Implications: Our stochastic use of emissions data from O&G facilities, along with activitypattern exposure modeling, provides new information on potential public-health impacts due to emissions from O&G operations. The results will help in evaluating the adequacy of O&G setback distances. For an assessment of human-health risks from exposures to air emissions near individual O&G sites, we have utilized a unique dataset of tracer-derived emissions of VOCs detected at such sites in two regions of intense oil-and-gas development in Colorado. We have coupled these emission stochastically with local meteorological data and population and time-activity data to estimate the potential for acute, subchronic, and chronic exposures above health-criteria levels due to air emissions near individual sites. These results, along with other pertinent health and exposure data, can be used to inform setback distances to protect public health.

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“…Levels of pollutants were determined not only by chemical or biological analysis (e.g. : gas chromatography or bioluminescence), but also by using probabilistic models that defined the degree of presence of contaminants around the facility (Lonati and Zanoni, 2013).…”

Section: Environmental Impact Of Gasification Processesmentioning

confidence: 99%

Environmental impact and occupational risk in gasification plants processing residues of sewage sludge and refuse-derived fuel: a review

Alves

Gonçalves

Brito

et al. 2018

IJOOES

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Scope & Goals: This article reviews recent scientific reports on environmental impact, as well as occupational safety and health, of gasification plants using residues of sewage sludge and refuse-derived fuel. Methods: The survey, covering a 10-year time span, was made through a typical systematic review of the literature, retrieved from online databases of scientific publications and by using general search engines; cross-referencing of citations included in documents was also considered. Results: Two tables summarising 38 publications were created, indicating relevant studies on the selected topics and providing a short description on risks, goals and main findings of each study, followed by a general discussion. Conclusions: Overall, gas explosion and inhalation of toxic gases were the most common risks reported in published studies, being considered negligible if safety measures are adopted; however there are fewer studies focusing on occupational safety in gasification plants than those focused on environmental hazards. Release of heavy metals, tar production and toxic gases are the main environmental concerns. From the prevention viewpoint, this review shows that treatment and valorisation of harmful tars is key feature that must be improved in the future to enable a sustainable development of this technology at a commercial scale.

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Monte-Carlo human health risk assessment of mercury emissions from a MSW gasification plant

Cited by 19 publications

References 49 publications

Valoración del riesgo en salud para un grupo poblacional de la ciudad de Cali-Colombia por exposición a Pb, Cd, Hg, 2-4D y Diuron debido al consumo de agua potable y alimentos

Valoración del riesgo en salud para un grupo poblacional de la ciudad de Cali-Colombia por exposición a Pb, Cd, Hg, 2-4D y Diuron debido al consumo de agua potable y alimentos

Evaluating potential human health risks from modeled inhalation exposures to volatile organic compounds emitted from oil and gas operations

Environmental impact and occupational risk in gasification plants processing residues of sewage sludge and refuse-derived fuel: a review

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