2025
Chemical Composition of Fresh and Aged Asphalt-Related Organic Aerosols: From Ambient Observations to Laboratory Experiments
Khare P, Machesky J, Williams L, Humes M, Fortner E, Canagaratna M, Krechmer J, Lambe A, Presto A, Gentner D. Chemical Composition of Fresh and Aged Asphalt-Related Organic Aerosols: From Ambient Observations to Laboratory Experiments. ACS ES&T Air 2025, 2: 446-455. DOI: 10.1021/acsestair.4c00193.Peer-Reviewed Original ResearchOrganic aerosolSecondary OA formationOxidation flow reactorAerosol mass spectrometryGas-phase emissionsReactive organic compoundsUrban OAAged OAAmbient observationsOA factorsOA formationAmbient measurementsDegree of oxidative agingChemical compositionOA concentrationsSource factorsAerosolLaboratory measurementsLaboratory observationsLaboratory experimentsOrganic compoundsDegree of oxidationAmbient airEnvironmental chamberOxidative aging
2024
Aged and Obscured Wildfire Smoke Associated with Downwind Health Risks
Joo T, Rogers M, Soong C, Hass-Mitchell T, Heo S, Bell M, Ng N, Gentner D. Aged and Obscured Wildfire Smoke Associated with Downwind Health Risks. Environmental Science & Technology Letters 2024, 11: 1340-1347. PMID: 39678709, PMCID: PMC11636238, DOI: 10.1021/acs.estlett.4c00785.Peer-Reviewed Original ResearchWildfire smokeSmoke episodeHealth risksWildfire smoke episodeHealth risk assessmentAerosol Chemical Speciation MonitorAerosol mass spectrometryPM2.5 contributionsPotential health effectsSource apportionmentWildfire impactsWildfire activityPM2.5 measurementsPM2.5 monitoringDays of transportParticulate matterPM2.5Air pollutionSpeciation monitorElevated health risksContinental influencePeak episodesSmoke transportClimate changeChemical aging
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