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 exposuresAn actionable annotation scoring framework for gas chromatography-high-resolution mass spectrometry
Koelmel J, Xie H, Price E, Lin E, Manz K, Stelben P, Paige M, Papazian S, Okeme J, Jones D, Barupal D, Bowden J, Rostkowski P, Pennell K, Nikiforov V, Wang T, Hu X, Lai Y, Miller G, Walker D, Martin J, Pollitt K. An actionable annotation scoring framework for gas chromatography-high-resolution mass spectrometry. Exposome 2022, 2: osac007. PMID: 36483216, PMCID: PMC9719826, DOI: 10.1093/exposome/osac007.Peer-Reviewed Original ResearchGas chromatography-high resolution mass spectrometryMass spectrometryHigh-resolution mass spectrometryPositive chemical ionizationResolution mass spectrometryChemical ionizationChemical dataElectron ionizationGC-HRMSMolecular ionsAccurate massNegative ionizationExposomics studiesChemical identificationCompound annotationChemical annotationRetention indicesIsotopic patternsSpectrometryIonizationRetention timeMolecular levelConfident annotationComprehensive characterizationCorresponding biological responses
2021
50 chemical exposures of concern discovered using wearable passive samplers and gas chromatography high-resolution mass spectrometry in South African children
Koelmel J, Lin E, Delay K, Williams A, Zhou Y, Bornman R, Obida M, Chevrier J, Godri Pollitt K. 50 chemical exposures of concern discovered using wearable passive samplers and gas chromatography high-resolution mass spectrometry in South African children. ISEE Conference Abstracts 2021, 2021 DOI: 10.1289/isee.2021.o-lt-106.Peer-Reviewed Original ResearchGas chromatography-high resolution mass spectrometryHigh-resolution mass spectrometryMass spectrometryPassive samplersChemical exposureSpectrometryHead, 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