2022
Characterizing the external exposome using passive samplers—comparative assessment of chemical exposures using different wearable form factors
Lin EZ, Nichols A, Zhou Y, Koelmel JP, Godri Pollitt KJ. Characterizing the external exposome using passive samplers—comparative assessment of chemical exposures using different wearable form factors. Journal Of Exposure Science & Environmental Epidemiology 2022, 33: 558-565. PMID: 35840784, DOI: 10.1038/s41370-022-00456-3.Peer-Reviewed Original ResearchConceptsPassive air samplersGas chromatography-high resolution mass spectrometryPassive samplersHigh-resolution mass spectrometryResolution mass spectrometryAirborne organic contaminantsAirborne chemical contaminantsOrganic contaminantsChemical exposureMass spectrometryAir samplerChemical contaminantsPersonal chemical exposureAirborne contaminantsActive samplersPersonal exposureContaminantsType of exposureSampler positionsEpidemiological studiesAirborne exposureExternal exposomeHousehold productsChestEnvironmental exposures
2021
Head, Shoulders, Knees, and Toes: Placement of Wearable Passive Samplers Alters Exposure Profiles Observed
Koelmel JP, Lin EZ, Nichols A, Guo P, Zhou Y, Pollitt K. Head, Shoulders, Knees, and Toes: Placement of Wearable Passive Samplers Alters Exposure Profiles Observed. Environmental Science And Technology 2021, 55: 3796-3806. PMID: 33625210, DOI: 10.1021/acs.est.0c05522.Peer-Reviewed Original ResearchConceptsSemivolatile organic compoundsOrganic compoundsGas chromatography-high resolution mass spectrometryPassive samplersHigh-resolution mass spectrometryVolatile organic compoundsPersonal exposure profilesChemicals of concernMass spectrometryChemicalsExposure dynamicsExposure profilesCompoundsMajor risk factorComprehensive characterizationPersonal exposureAirborne contaminantsContaminant exposureRisk factorsInhalation routeEpidemiological studiesChemical exposureSpectrometrySamplerParticipants' wrists
2020
Ambient particulate matter oxidative potential: Chemical determinants, associated health effects, and strategies for risk management
Gao D, Ripley S, Weichenthal S, Godri Pollitt KJ. Ambient particulate matter oxidative potential: Chemical determinants, associated health effects, and strategies for risk management. Free Radical Biology And Medicine 2020, 151: 7-25. PMID: 32430137, DOI: 10.1016/j.freeradbiomed.2020.04.028.Peer-Reviewed Original ResearchConceptsOxidative potentialRedox-active metalsRedox propertiesPM chemical constituentsOrganic speciesPM oxidative potentialTarget moleculesFine PM massOP assaysChemical constituentsChemical determinantsParticulate matter toxicityOP responseMass concentrationAssociated health effectsPM speciesAir pollution exposure assessmentMetalsEpidemiological studiesHealth outcomesEpidemiologic literaturePollution exposure assessmentHealth effectsRedoxExposure assessment
2016
Particulate Oxidative Burden as a Predictor of Exhaled Nitric Oxide in Children with Asthma
Maikawa CL, Weichenthal S, Wheeler AJ, Dobbin NA, Smargiassi A, Evans G, Liu L, Goldberg MS, Pollitt KJ. Particulate Oxidative Burden as a Predictor of Exhaled Nitric Oxide in Children with Asthma. Environmental Health Perspectives 2016, 124: 1616-1622. PMID: 27152705, PMCID: PMC5047770, DOI: 10.1289/ehp175.Peer-Reviewed Original ResearchOxidative burdenAirway inflammationNitric oxideAsthmatic school-aged childrenExhaled Nitric OxideReactive oxygen speciesPM2.5 personal exposureFeNO levelsFeNO responseCorticosteroid useAsthmatic symptomsAsthmatic childrenSchool-aged childrenRespiratory tractOxygen speciesEpidemiological studiesFeNOFluid liningConsecutive daysPersonal exposurePersonal exposure samplesAsthmaBurdenAllergyChildren