2025
Fire Smoke Elevated the Carbonaceous PM2.5 Concentration and Mortality Burden in the Contiguous U.S. and Southern Canada
Jin Z, Ferrada G, Zhang D, Scovronick N, Fu J, Chen K, Liu Y. Fire Smoke Elevated the Carbonaceous PM2.5 Concentration and Mortality Burden in the Contiguous U.S. and Southern Canada. Environmental Science And Technology 2025, 59: 12196-12210. PMID: 40504638, PMCID: PMC12199464, DOI: 10.1021/acs.est.5c01641.Peer-Reviewed Original ResearchWildland fire smokeElemental carbonOrganic carbonContiguous U.S.Fire smokeSouthern CanadaImpact of fine particulate matterFine particulate matterBackground air qualityHealth impactsNon-accidental deathsPrescribed firePM2.5 concentrationsWildfire seasonFuture health burdenParticulate matterAir qualityWildlandMonetized damagesSouthwestern CanadaMonthly scaleFireModel resultsWildfireCanadaShort-term exposure to ambient nitrogen dioxide and fine particulate matter and cause-specific mortality: A causal modeling approach in four regions
Marb A, Ma Y, Nobile F, Dubrow R, Kinney P, Stafoggia M, Chen K, Peters A, Breitner S. Short-term exposure to ambient nitrogen dioxide and fine particulate matter and cause-specific mortality: A causal modeling approach in four regions. Environmental Pollution 2025, 372: 126059. PMID: 40089139, DOI: 10.1016/j.envpol.2025.126059.Peer-Reviewed Original ResearchParticulate matterAir pollutionDaily NO<sub>2</sub> anShort-term air pollution exposureNitrogen dioxideDaily air pollution dataExposure to NO<sub>2</sub>Effects of air pollutionShort-term exposure to NO<sub>2</sub> anFine particulate matterTwo-pollutant modelsExposure to ambient nitrogen dioxideAmbient air pollutionAmbient particulate matterAir pollution dataAir pollution exposureCause-specific mortality ratesAmbient nitrogen dioxideRural populationCause-specific mortalityRespiratory mortality ratesMortality rateCause-specific deathCardiovascular mortality ratesPollution exposureEffect of Air Pollution Reductions on Mortality During the COVID-19 Lockdowns in Early 2020.
Chen K, Ma Y, Marb A, Nobile F, Dubrow R, Stafoggia M, Breitner S, Kinney P. Effect of Air Pollution Reductions on Mortality During the COVID-19 Lockdowns in Early 2020. Research Report 2025, 2025: 1-47. PMID: 40551404, PMCID: PMC12185919.Peer-Reviewed Original ResearchConceptsAir pollution changesAir pollutionPollution changesShort-term exposure to PM<sub>2.5</sub>Air qualityExposure to PM<sub>2.5</sub>Natural-causeMeteorological normalization techniqueFine particulate matterDaily air pollutionImprove air qualityAir pollutant emissionsAir pollution reductionEmission control strategiesSouthern ItalyQuantify changesAir pollution-mortality relationshipPollution-mortality relationshipCOVID-19 lockdownShort-term exposureNOParticulate matterMeteorological impactsNitrogen dioxidePollution reduction
2024
Air pollution changes due to COVID-19 lockdowns and attributable mortality changes in four countries
Ma Y, Nobile F, Marb A, Dubrow R, Kinney P, Peters A, Stafoggia M, Breitner S, Chen K. Air pollution changes due to COVID-19 lockdowns and attributable mortality changes in four countries. Environment International 2024, 187: 108668. PMID: 38640613, DOI: 10.1016/j.envint.2024.108668.Peer-Reviewed Original ResearchConceptsMeteorological normalization techniqueAir pollution changesFine particulate matterImprove air qualityEmission control strategiesCentral-southern ItalyPollution changesParticulate matterRegion-specific estimatesAir qualityMeteorological impactsAir pollutionPollutionCOVID-19 lockdownModeling approachAirCaliforniaMortality changesConcentrationJiangsuEmissionTime trendsLocal characteristicsChinaMatterShort-Term Exposure to Fine Particulate Matter and Nitrogen Dioxide and Mortality in 4 Countries
Ma Y, Nobile F, Marb A, Dubrow R, Stafoggia M, Breitner S, Kinney P, Chen K. Short-Term Exposure to Fine Particulate Matter and Nitrogen Dioxide and Mortality in 4 Countries. JAMA Network Open 2024, 7: e2354607. PMID: 38427355, PMCID: PMC10907920, DOI: 10.1001/jamanetworkopen.2023.54607.Peer-Reviewed Original ResearchConceptsShort-term exposure to air pollutionExposure to air pollutionFine particulate matterCross-sectional studyAir pollutionFixed-effects modelParticulate matterShort-term exposure to PM2.5Short-term exposure to fine particulate matterNO2 concentrationsExposure to fine particulate matterMortality rateNitrogen dioxideSignificant effect modificationDaily PM2.5 concentrationsTime-varying confoundersExposure to PM2.5Health outcomesEstimate associationsMortality dataEffect modificationPM2.5 concentrationsMain OutcomesDay-to-dayCentral-southern Italy
2023
Long-Term Exposure to Fine Particulate Matter and Academic Performance Among Children in North Carolina
Lam P, Zang E, Chen D, Liu R, Chen K. Long-Term Exposure to Fine Particulate Matter and Academic Performance Among Children in North Carolina. JAMA Network Open 2023, 6: e2340928. PMID: 37906198, PMCID: PMC10618843, DOI: 10.1001/jamanetworkopen.2023.40928.Peer-Reviewed Original ResearchConceptsAssociation of exposureCross-sectional studyFine particulate matterSchool-aged childrenLong-term exposureAge childrenChildrenExposureNorth Carolina
2021
Health Burden and economic impacts attributed to PM2.5 and O3 in china from 2010 to 2050 under different representative concentration pathway scenarios
Wang Y, Hu J, Zhu J, Li J, Qin M, Liao H, Chen K, Wang M. Health Burden and economic impacts attributed to PM2.5 and O3 in china from 2010 to 2050 under different representative concentration pathway scenarios. Resources Conservation And Recycling 2021, 173: 105731. DOI: 10.1016/j.resconrec.2021.105731.Peer-Reviewed Original Research
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