Search results for "Contaminante"

showing 10 items of 25 documents

Residential Exposure to Outdoor Air Pollution during Pregnancy and Anthropometric Measures at Birth in a Multicenter Cohort in Spain

2011

Background: A growing body of research suggests that prenatal exposure to air pollution may be harmful to fetal development. We assessed the association between exposure to air pollution during pregnancy and anthropometric measures at birth in four areas within the Spanish Children’s Health and Environment (INMA) mother and child cohort study. Methods: Exposure to ambient nitrogen dioxide (NO2) and benzene was estimated for the residence of each woman (n = 2,337) for each trimester and for the entire pregnancy. Outcomes included birth weight, length, and head circumference. The association between residential outdoor air pollution exposure and birth outcomes was assessed with linear regress…

Questionnaires:Health Care::Environment and Public Health::Public Health::Environmental Pollution::Environmental Exposure::Environmental Monitoring [Medical Subject Headings]Fetus -- CreixementPediatricsHealth Toxicology and MutagenesisEspañaair pollution:Phenomena and Processes::Physiological Phenomena::Body Constitution::Body Weights and Measures::Body Size::Body Weight [Medical Subject Headings]:Organisms::Eukaryota::Animals::Chordata::Vertebrates::Mammals::Primates::Haplorhini::Catarrhini::Hominidae::Humans [Medical Subject Headings]Cohort StudiesbenzenebirthRecién NacidoPregnancyResidence CharacteristicsSurveys and Questionnaires:Chemicals and Drugs::Chemical Actions and Uses::Toxic Actions::Environmental Pollutants::Air Pollutants [Medical Subject Headings]:Health Care::Environment and Public Health::Public Health::Environmental Pollution::Environmental Exposure::Maternal Exposure [Medical Subject Headings]Birth WeightBody SizeMedicineProspective StudiesProspective cohort studyTamaño Corporal:Phenomena and Processes::Reproductive and Urinary Physiological Phenomena::Reproductive Physiological Phenomena::Reproductive Physiological Processes::Reproduction::Pregnancy [Medical Subject Headings]:Health Care::Environment and Public Health::Public Health::Epidemiologic Methods::Data Collection::Questionnaires [Medical Subject Headings]Vehicle Emissions:Geographicals::Geographic Locations::Europe::Spain [Medical Subject Headings]Dióxido de NitrógenoPeso al NacerAir PollutantsInhalation ExposureanthropometryAdultoDistribución Espacial de la Población:Chemicals and Drugs::Complex Mixtures::Vehicle Emissions [Medical Subject Headings]Adulto JovenEstudios ProspectivosAire -- Contaminació -- Efectes fisiològics -- EpidemiologiaExposición MaternaHumanos:Health Care::Environment and Public Health::Public Health::Environmental Pollution::Environmental Exposure::Inhalation Exposure [Medical Subject Headings]Maternal ExposureFemeninaInfant Small for Gestational AgeCohort:Named Groups::Persons::Age Groups::Infant::Infant Newborn::Infant Low Birth Weight::Infant Small for Gestational Age [Medical Subject Headings]:Chemicals and Drugs::Inorganic Chemicals::Nitrogen Compounds::Nitrogen Oxides [Medical Subject Headings]Emisiones de VehículosFemalepregnancyEnvironmental MonitoringCohort studyAdultmedicine.medical_specialty:Named Groups::Persons::Age Groups::Adult::Young Adult [Medical Subject Headings]nitrogen dioxideEmbarazoBirth weightMonitoreo del AmbienteExposición por Inhalación:Analytical Diagnostic and Therapeutic Techniques and Equipment::Diagnosis::Diagnostic Techniques and Procedures::Physical Examination::Body Constitution::Body Weights and Measures::Body Size [Medical Subject Headings]:Named Groups::Persons::Age Groups::Infant::Infant Newborn [Medical Subject Headings]Young AdultRecién Nacido Pequeño para la Edad Gestacional:Named Groups::Persons::Age Groups::Adult [Medical Subject Headings]HumansPregnancybusiness.industryResearchBencenoInfant NewbornPublic Health Environmental and Occupational Healthbirth weightAnthropometrymedicine.disease:Health Care::Environment and Public Health::Public Health::Epidemiologic Measurements::Demography::Residence Characteristics [Medical Subject Headings]Confidence interval:Chemicals and Drugs::Organic Chemicals::Hydrocarbons::Hydrocarbons Cyclic::Hydrocarbons Aromatic::Benzene [Medical Subject Headings]:Health Care::Environment and Public Health::Public Health::Epidemiologic Methods::Epidemiologic Study Characteristics as Topic::Epidemiologic Studies::Cohort Studies::Prospective Studies [Medical Subject Headings]:Check Tags::Female [Medical Subject Headings]Spain:Analytical Diagnostic and Therapeutic Techniques and Equipment::Investigative Techniques::Epidemiologic Methods::Epidemiologic Study Characteristics as Topic::Epidemiologic Studies::Cohort Studies [Medical Subject Headings]Contaminantes del AireSmall for gestational ageEstudios de CohortesbusinessDemographyEnvironmental Health Perspectives
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Estudio del tratamiento del efluente de un reactor anaerobio de membranas sumergidas (SAnMBR) mediante un sistema de fangos activados

2016

El crecimiento acelerado de los núcleos urbanos ha provocado que las aguas residuales urbanas sean una fuente importante de contaminación ambiental, siendo necesario desarrollar e implementar tecnologías enfocadas a prevenir y mitigar los graves problemas de contaminación. El uso de un reactor anaerobio de membrana sumergida (SAnMBR) para el tratamiento de aguas residuales urbanas es una alternativa que permite transformar la materia orgánica en biogás y minimizar los fangos producidos. Sin embargo produce un efluente con concentraciones de nitrógeno y fósforo similares a las del agua residual afluente, con concentraciones moderadas de materia orgánica biodegradable y metano disuelto y en o…

contaminantestratamientoFangos activadosPostratamientoAgua residual
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Determinación de contaminantes orgánicos persistentes emergentes en el medio ambiente y evaluación de la exposición en humanos

2018

El interés por la presencia de contaminantes emergentes en los distintos compartimentos ambientales ha crecido exponencialmente en las últimas décadas. Estos contaminantes se definen como sustancias químicas que pueden haber estado presentes en el medio ambiente desde hace tiempo, pero solo han sido identificadas recientemente gracias al desarrollo de técnicas analíticas más sensibles. Por tanto, la mayor parte no se encuentran reguladas y sus efectos en el medio ambiente y la salud humana a gran escala son desconocidos (Mandaric et al., 2016). El destino final para la mayoría de los contaminantes emergentes es el agua o los ecosistemas acuáticos, a los que pueden llegar por distintas vías:…

Contaminación ambientalContaminantes orgánicos persistentes emergentesQuímica ambiental
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Caracterización y seguimiento de contaminantes emergentes

2016

El problema de la contaminación ambiental es de una elevada complejidad ya que, además de la gran cantidad de sustancias tóxicas que se analizan y monitorizan en el presente, cada día se originan o se detectan otras y por consiguiente, las soluciones correspondientes parecen ser inalcanzables. La actividad humana en todo los sectores genera contaminantes orgánicos (OCs), algunos de ellos emergentes (ECs), que ponen en riesgo a las diferentes formas de vida a corto, medio y largo plazo. Es más, en algunos casos sólo se han descubierto recientemente los efectos tóxicos de determinados compuestos (pudiendo haber existido exposición a ellos). La legislación a nivel europeo, así como su transpos…

nanomaterialesUNESCO::QUÍMICAcontaminantes emergentes:QUÍMICA [UNESCO]
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Contaminants of emerging concern in the environment. Turia River as study case

2018

Tesis llevada a cabo para conseguir el grado de Doctor por la Universidad de Valencia.--2018-04-05

drogas de abusoQuEChERScontaminantes emergentesmétodo analíticotriple quadrupolo:QUÍMICA::Química analítica::Análisis cromatográfico [UNESCO]Tampón de McIlvaineMS/MSProductos de cuidado personalUNESCO::QUÍMICA::Química analítica::Análisis cromatográficoUNESCO::CIENCIAS DE LA TIERRA Y DEL ESPACIO::Hidrología ::Aguas superficialesHPLCQToFfármacos:CIENCIAS DE LA TIERRA Y DEL ESPACIO::Hidrología ::Aguas superficiales [UNESCO]Extracción en fase sólida
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Emerging pollutants in the aquatic environment: Assessment in biota and influence of microplastics

2021

El medio ambiente sufre el vertido continuo de contaminantes antropogénicos, incluyendo compuestos orgánicos, como fármacos y productos de cuidado personal (PPCPs), plaguicidas, sustancias perfluoroalquiladas (PFASs), drogas de abuso y microplásticos. Algunos de estos contaminantes son de hecho considerados contaminantes emergentes. Una de las principales fuentes de contaminantes al medio ambiente son las estaciones depuradoras de aguas residuales Además, existen otras fuentes de carácter más difuso como la infiltración o las aguas de escorrentía, que pueden transportar plaguicidas y otros contaminantes emergentes empleados en los campos de cultivo. Todos estos vertidos suelen tener un dest…

contaminantes orgánicosbioaccumulationmicroplásticosorganic pollutantsUNESCO::QUÍMICA:CIENCIAS DE LA TIERRA Y DEL ESPACIO [UNESCO]contaminantes emergentesLC-MS/MSUNESCO::CIENCIAS DE LA TIERRA Y DEL ESPACIO:QUÍMICA [UNESCO]bioacumulaciónecosistemas acuáticos
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Exposure to trihalomethanes through different water uses and birth weight, small for gestational age, and preterm delivery in Spain

2011

Background: Evidence associating exposure to water disinfection by-products with reduced birth weight and altered duration of gestation remains inconclusive. Objective: We assessed exposure to trihalomethanes (THMs) during pregnancy through different water uses and evaluated the association with birth weight, small for gestational age (SGA), low birth weight (LBW), and preterm delivery. Methods: Mother–child cohorts set up in five Spanish areas during the years 2000–2008 contributed data on water ingestion, showering, bathing, and swimming in pools. We ascertained residential THM levels during pregnancy periods through ad hoc sampling campaigns (828 measurements) and regulatory data (264 me…

PediatricsFetus -- CreixementBathingHealth Toxicology and MutagenesisEspaña:Organisms::Eukaryota::Animals::Chordata::Vertebrates::Mammals::Primates::Haplorhini::Catarrhini::Hominidae::Humans [Medical Subject Headings]Cohort Studies:Analytical Diagnostic and Therapeutic Techniques and Equipment::Investigative Techniques::Models Theoretical [Medical Subject Headings]small for gestational agePregnancynewbornFemeninosExposición a Riesgos Ambientales:Phenomena and Processes::Reproductive and Urinary Physiological Phenomena::Reproductive Physiological Phenomena::Reproductive Physiological Processes::Reproduction::Pregnancy [Medical Subject Headings]:Geographicals::Geographic Locations::Europe::Spain [Medical Subject Headings]water pollutionInfeccions respiratòries -- EpidemiologiaAdultodisinfection by-products:Named Groups::Persons::Age Groups::Infant::Infant Newborn::Infant Low Birth Weight [Medical Subject Headings]Modelos TeóricosEnvironmental exposurepremature birthNacimiento PrematuroHumanos:Health Care::Environment and Public Health::Public Health::Environmental Pollution::Environmental Exposure [Medical Subject Headings]:Analytical Diagnostic and Therapeutic Techniques and Equipment::Investigative Techniques::Epidemiologic Methods::Statistics as Topic::Models Statistical::Logistic Models [Medical Subject Headings]Premature birthInfant Small for Gestational AgeGestation:Named Groups::Persons::Age Groups::Infant::Infant Newborn::Infant Low Birth Weight::Infant Small for Gestational Age [Medical Subject Headings]Femaleepidemiologymedicine.symptomAigua -- DepuracióAdultmedicine.medical_specialtytrihalomethanesContaminantes Químicos del AguaEmbarazoBirth weight:Named Groups::Persons::Age Groups::Infant::Infant Newborn [Medical Subject Headings]Embaràs -- Aspectes nutricionalsRecién nacidoRecién Nacido Pequeño para la Edad GestacionalEnvironmental healthmedicine:Named Groups::Persons::Age Groups::Adult [Medical Subject Headings]cohort studyModelos LogísticosHumanslow birth weightEpidemiologiaRecién Nacido de Bajo Peso:Chemicals and Drugs::Organic Chemicals::Hydrocarbons::Hydrocarbons Halogenated::Trihalomethanes [Medical Subject Headings]Pregnancybusiness.industryTrihalometanoResearchPublic Health Environmental and Occupational HealthInfant Newbornbirth weightEnvironmental ExposureInfant Low Birth WeightModels Theoreticalmedicine.diseaseLow birth weightLogistic Models:Check Tags::Female [Medical Subject Headings]Spain:Analytical Diagnostic and Therapeutic Techniques and Equipment::Investigative Techniques::Epidemiologic Methods::Epidemiologic Study Characteristics as Topic::Epidemiologic Studies::Cohort Studies [Medical Subject Headings]Small for gestational age:Chemicals and Drugs::Chemical Actions and Uses::Toxic Actions::Environmental Pollutants::Water Pollutants::Water Pollutants Chemical [Medical Subject Headings]:Diseases::Female Urogenital Diseases and Pregnancy Complications::Pregnancy Complications::Obstetric Labor Complications::Obstetric Labor Premature::Premature Birth [Medical Subject Headings]businessEstudios de CohortesWater Pollutants Chemical
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Desarrollo de estrategías analíticas para la identificación de contaminantes emergentes

2015

En la presente Tesis, se han desarrollado diferentes métodos para identificar la presencia de contaminantes procedentes de diferentes fuentes naturales. Los métodos desarrollados han sido abordados utilizando dos metodologías: (i) IT-SPME acoplado a CapLC y UHPLC con detección DAD y MS, y (ii) dispositivos de análisis in situ. La estrategia basada en el acoplamiento entre IT-SPME y CapLC y UHPLC se ha utilizado para la estimación de la presencia de contaminantes (pesticidas como triazinas, nitroanilina, fenilureas y organofosforados, y plastificantes como productos de degradación del DEHP y principalmente DEHP) en muestras de aguas superficiales, de aguas de depuradoras, biota y sedimentos.…

contaminantessensorUNESCO::QUÍMICAin situit-spme:QUÍMICA [UNESCO]miniaturización
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Mercury exposure and risk of cardiovascular disease: a nested case-control study in the PREDIMED (PREvention with MEDiterranean Diet) study

2017

Background: Substantial evidence suggests that consuming 1-2 servings of fish per week, particularly oily fish (e.g., salmon, herring, sardines) is beneficial for cardiovascular health due to its high n-3 polyunsaturated fatty acid content. However, there is some concern that the mercury content in fish may increase cardiovascular disease risk, but this relationship remains unclear. Methods: The PREDIMED trial included 7477 participants who were at high risk for cardiovascular disease at baseline. In this study, we evaluated associations between mercury exposure, fish consumption and cardiovascular disease. We randomly selected 147 of the 288 cases diagnosed with cardiovascular disease duri…

Malecompuestos de metilmercurioTime Factorsmodelos logísticosMediterranean diethumanos030204 cardiovascular system & hematologyDiet MediterraneanRecommended Dietary AllowancesDieta mediterrània1471-22610302 clinical medicineRisk Factorsestudios prospectivosevaluación de riesgosOdds RatioOily fishWater Pollutants030212 general & internal medicineProspective StudiesToenail biomarkeruñasmediana edadCiències de la salutAged 80 and overeducation.field_of_studyBioquímica y tecnologíaanciano:Ciencias de la Salud::Salud pública [Materias Investigacion]dietaMALALTIES CARDIOVASCULARSMethylmercury CompoundsMiddle Agedcontaminantes del aguaCardiovascular diseaseCiencias de la saludcociente de probabilidades relativasBiochemistry and technologyCardiovascular DiseasesBody BurdenFemaleCardiology and Cardiovascular Medicinecantidad dietética recomendadaResearch ArticlePREDIMEDmedicine.medical_specialtyPopulationestudios de casos y controlesenfermedades cardiovasculareschemistry.chemical_elementFood ContaminationSistema cardiovascular malaltiesBioquímica i biotecnologiaRisk Assessment03 medical and health sciencesalimentos del marfactores de tiempoEnvironmental healthMediterranean dietmedicineHumansfactores de riesgoMercuri -- Toxicologiaanálisis multifactorialeducationCardivascular diseaseAgedbusiness.industryCase-control studyHealth sciencesOdds ratioMercuryProtective FactorsSurgeryMercury (element)DietLogistic ModelsFishchemistrySeafoodNailsSpainRelative riskCase-Control StudiesNested case-control studyMultivariate AnalysisbusinessWater Pollutants Chemicalcarga corporal
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Démarche statistique pour la sélection des indicateurs par Random Forests pour la surveillance de la qualité des sols

2013

The volume of data, and the large number of biological variables to be tested (one hundred), require analytical techniques, such asRandom Forests, which can overcome the problem of multi-colinearity for the selection of indicators, sensitive to various factors.Random Forests methodology is appropriate for the selection of the most discriminant variables. So, we searched for the best wayto select them, by bringing together all biological variables, representing the Microflora and Fauna. This approach focuses on impactindicators from the Bio2 program, indicators of flora and indicators of accumulation (snails) were not included.This work has been implemented on the three factors of discrimina…

Analyse discriminanteRandom Forestscontaminantes orgánicosindicateurs pédologiquesland use.organic pollutantspolluants organiques[ SHS.ENVIR ] Humanities and Social Sciences/Environmental studies[ SHS.GEO ] Humanities and Social Sciences/Geography[SHS]Humanities and Social Sciencesbioindicateurs[ SHS ] Humanities and Social Sciencesoccupation des sols.sélectionméthodes statiquesbioindicadoresRandom Forets[ SHS.STAT ] Humanities and Social Sciences/Methods and statisticsComputingMilieux_MISCELLANEOUS[SHS.STAT]Humanities and Social Sciences/Methods and statisticspédologieuso del sueloDiscriminant Analysis[SHS.GEO]Humanities and Social Sciences/Geographysols[SDE.ES]Environmental Sciences/Environmental and Societymetal contaminationETMselección[SHS.ENVIR]Humanities and Social Sciences/Environmental studiesbioindicatorsanálisis discriminante[SDE.ES] Environmental Sciences/Environmental and Society[ SDE.ES ] Environmental Sciences/Environmental and Societyqualité des sols
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