2024
Between and within-city variations of PM2.5 oxidative potential in five cities in Colombia
Rojas N, Agudelo-Castañeda D, Bustos D, Godri Pollitt K, Gao D, Rodriguez-Villamizar L. Between and within-city variations of PM2.5 oxidative potential in five cities in Colombia. Air Quality, Atmosphere & Health 2024, 1-14. DOI: 10.1007/s11869-024-01632-0.Peer-Reviewed Original ResearchPM2.5 mass concentrationsUltrasonic Personal Aerosol SamplerMass concentrationFine particulate matterAmbient PM2.5 samplesHealth exposure metricWithin-city variationAdverse health effectsPM2.5 OPPM2.5 samplesOP metricsBackground siteParticulate matterPM2.5Residential sitesIndustrial sitesOxidation potentialSite typesPersonal aerosol samplersExposure metricsHealth effectsAerosol samplerM-3ConcentrationSites
2022
Air Pollution and Pediatric Respiratory Hospitalizations: Effect Modification by Particle Constituents and Oxidative Potential.
Korsiak J, Lavigne E, You H, Pollitt K, Kulka R, Hatzopoulou M, Evans G, Burnett RT, Weichenthal S. Air Pollution and Pediatric Respiratory Hospitalizations: Effect Modification by Particle Constituents and Oxidative Potential. American Journal Of Respiratory And Critical Care Medicine 2022, 206: 1370-1378. PMID: 35802828, DOI: 10.1164/rccm.202205-0896oc.Peer-Reviewed Original ResearchConceptsRespiratory hospitalizationsConditional logistic regression modelsPediatric respiratory hospitalizationsFine particulate air pollutionCase-crossover studyLogistic regression modelsParticulate air pollutionOxidant gasesRespiratory healthEffect modificationOdds ratioHospitalizationParticle oxidative potentialStrong associationConfidence intervalsOxidative potentialMedianPositive associationChildrenAssociationMedian valueRegression modelsFine particulate matterOutdoor fine particlesAir pollution
2016
Trace metal exposure is associated with increased exhaled nitric oxide in asthmatic children
Godri Pollitt KJ, Maikawa CL, Wheeler AJ, Weichenthal S, Dobbin NA, Liu L, Goldberg MS. Trace metal exposure is associated with increased exhaled nitric oxide in asthmatic children. Environmental Health 2016, 15: 94. PMID: 27586245, PMCID: PMC5009709, DOI: 10.1186/s12940-016-0173-5.Peer-Reviewed Original ResearchConceptsAsthmatic childrenIQR increaseNitric oxideEmergency room visitsExacerbation of symptomsPersonal daily exposureAcute health effectsResultsA positive associationElevated FeNOFeNO responseAirway inflammationRoom visitsMarker of trafficDaily exposureAsthma experienceConsecutive daysFeNOChildren's exposureHealth effectsPersonal samplesChildrenPositive associationExposureFine particulate matterAmbient PM2.5