2025
Exposure to per‐ and polyfluoroalkyl substances in residential settled dust and risk of childhood acute lymphoblastic leukemia
Metayer C, Morimoto L, Vieira V, Pollitt K, Bartell S, Wong L, Young T. Exposure to per‐ and polyfluoroalkyl substances in residential settled dust and risk of childhood acute lymphoblastic leukemia. International Journal Of Cancer 2025 PMID: 39950710, DOI: 10.1002/ijc.35370.Peer-Reviewed Original ResearchGeneralized additive modelPolyfluoroalkyl substancesPerfluoro-1-octanesulfonateAssociated with childhood acute lymphoblastic leukemiaPFAS mixtureChildhood ALLPerfluoro-n-hexanoic acidPolyfluoroalkyl substances concentrationsChildhood acute lymphoblastic leukemiaIndividual PFASLimit of quantificationAcute lymphoblastic leukemiaExposure to per-G-computationNegative weightsRisk of childhood acute lymphoblastic leukemiaResidential dustFilling the Gaps in PFAS Detection: Integrating GC-MS Non-Targeted Analysis for Comprehensive Environmental Monitoring and Exposure Assessment
Newton S, Bowden J, Charest N, Jackson S, Koelmel J, Liberatore H, Lin A, Lowe C, Nieto S, Pollitt K, Robuck A, Rostkowski P, Townsend T, Wallace M, Williams A. Filling the Gaps in PFAS Detection: Integrating GC-MS Non-Targeted Analysis for Comprehensive Environmental Monitoring and Exposure Assessment. Environmental Science & Technology Letters 2025, 12: 104-112. DOI: 10.1021/acs.estlett.4c00930.Peer-Reviewed Original ResearchNon-target analysisLC-ESI-MSLC-MSNovel PFASsChromatography-mass spectrometryNTA studiesGC-MSTransformation productsPFAS structuresPFAS chemistryLiquid chromatography-mass spectrometryPolyfluoroalkyl substancesGC-MS methodPFAS researchGas chromatography-mass spectrometryLC-MS analysisChemical spaceParent compoundAqueous filmSpectrometryPFAS detectionsChemicalSources of PFASsCompoundsChemistry
2024
Expanding PFAS Identification with Transformation Product Libraries: Nontargeted Analysis Reveals Biotransformation Products in Mice
Liu S, Dukes D, Koelmel J, Stelben P, Finch J, Okeme J, Lowe C, Williams A, Godri D, Rennie E, Parry E, McDonough C, Pollitt K. Expanding PFAS Identification with Transformation Product Libraries: Nontargeted Analysis Reveals Biotransformation Products in Mice. Environmental Science And Technology 2024, 59: 119-131. PMID: 39704186, DOI: 10.1021/acs.est.4c07750.Peer-Reviewed Original ResearchConceptsMass spectral libraryTransformation productsLiquid chromatography-high resolution mass spectrometryProduct libraryPolyfluoroalkyl substancesBiological transformation productsSpectral libraryFragmentation rulesBehavior of PFASPotential transformation productsMass spectrometryToxicity predictionChemical subclassesReaction productsLiver S9 fractionBiotransformation productsEnzymatic reactionsMutagenic toxicityReactionMouse liver S9 fractionBiological systemsS9 fractionDealkylationChemicalSpectrometry
2023
Non-targeted analysis (NTA) and suspect screening analysis (SSA): a review of examining the chemical exposome
Manz K, Feerick A, Braun J, Feng Y, Hall A, Koelmel J, Manzano C, Newton S, Pennell K, Place B, Godri Pollitt K, Prasse C, Young J. Non-targeted analysis (NTA) and suspect screening analysis (SSA): a review of examining the chemical exposome. Journal Of Exposure Science & Environmental Epidemiology 2023, 33: 524-536. PMID: 37380877, PMCID: PMC10403360, DOI: 10.1038/s41370-023-00574-6.Peer-Reviewed Original ResearchConceptsHigh-resolution mass spectrometryNon-targeted analysisExposure mediaChemical spaceSoils/sedimentsMass spectrometryPolyfluoroalkyl substancesSemi-volatile organic compoundsChemical exposomePolyaromatic hydrocarbonsLiquid chromatographyEnvironmental mediaOrganic compoundsGC-HRMSHuman exposureLC-HRMSAnalytical platformConsumer productsChemical exposureSedimentsPesticidesEnvironmental chemicalsChemicalsExposure sourcesSpectrometryTrace analysis of per- and polyfluorinated alkyl substances (PFAS) in dried blood spots – Demonstration of reproducibility and comparability to venous blood samples
Lin E, Nason S, Zhong A, Fortner J, Godri Pollitt K. Trace analysis of per- and polyfluorinated alkyl substances (PFAS) in dried blood spots – Demonstration of reproducibility and comparability to venous blood samples. The Science Of The Total Environment 2023, 883: 163530. PMID: 37094673, PMCID: PMC10248884, DOI: 10.1016/j.scitotenv.2023.163530.Peer-Reviewed Original ResearchConceptsPolyfluoroalkyl substancesLiquid chromatography-high resolution mass spectrometryResolution mass spectrometryWater-repellent propertiesVenous blood samplesBlood samplesTrace levelsTrace analysisMass spectrometryWhole blood samplesChemical analysisAlkyl substancesHealthy adultsMan-made chemicalsAdverse health outcomesAnalytical methodBlank correctionHousehold productsHealth outcomesPFAS exposureInvasive methodBlood collectionBlood spotsCritical windowEnvironmental exposures
2022
Emerging and Legacy Per- and Polyfluoroalkyl Substances in an Elderly Population in Jinan, China: The Exposure Level, Short-Term Variation, and Intake Assessment
Jia X, Jin Q, Fang J, Shi Y, Hou M, Dong H, Liu Y, Deng F, Zhou Y, Pollitt K, Tang S, Shi X, Cai Y. Emerging and Legacy Per- and Polyfluoroalkyl Substances in an Elderly Population in Jinan, China: The Exposure Level, Short-Term Variation, and Intake Assessment. Environmental Science And Technology 2022, 56: 7905-7916. PMID: 35584234, DOI: 10.1021/acs.est.2c00381.Peer-Reviewed Original ResearchConceptsElderly adultsHealthy elderly adultsBw/dayHuman exposureAdverse health effectsMedian intakeIntake assessmentElderly populationMonth assessment periodDietary ingestionHealth effectsInternal exposureWhole bloodPerfluorooctanoic acidExposure levelsImportant exposure pathwayExposure assessmentAssessment periodConsecutive monthsRegression analysisPolyfluoroalkyl substancesPerfluorooctanesulfonic acidCl-PFESAExposureAdults
2021
Yale School of Public Health Symposium: An overview of the challenges and opportunities associated with per- and polyfluoroalkyl substances (PFAS)
Hagstrom AL, Anastas P, Boissevain A, Borrel A, Deziel NC, Fenton SE, Fields C, Fortner JD, Franceschi-Hofmann N, Frigon R, Jin L, Kim JH, Kleinstreuer NC, Koelmel J, Lei Y, Liew Z, Ma X, Mathieu L, Nason SL, Organtini K, Oulhote Y, Pociu S, Godri Pollitt KJ, Saiers J, Thompson DC, Toal B, Weiner EJ, Whirledge S, Zhang Y, Vasiliou V. Yale School of Public Health Symposium: An overview of the challenges and opportunities associated with per- and polyfluoroalkyl substances (PFAS). The Science Of The Total Environment 2021, 778: 146192. PMID: 33714836, DOI: 10.1016/j.scitotenv.2021.146192.Peer-Reviewed Original Research
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