2024
Long-term exposure to wildland fire smoke PM2.5 and mortality in the contiguous United States
Ma Y, Zang E, Liu Y, Wei J, Lu Y, Krumholz H, Bell M, Chen K. Long-term exposure to wildland fire smoke PM2.5 and mortality in the contiguous United States. Proceedings Of The National Academy Of Sciences Of The United States Of America 2024, 121: e2403960121. PMID: 39316057, PMCID: PMC11459178, DOI: 10.1073/pnas.2403960121.Peer-Reviewed Original ResearchConceptsWildland firesContiguous United StatesNonaccidental mortalityExposure to ambient fine particlesSmoke PM<sWildland fire smokeMoving average concentrationsAmbient fine particlesLong-term exposureAverage concentrationSmoke PMHealth risksFine particlesFire smokeTemporal confoundingHealth effectsKidney disease mortalityChronic kidney disease mortalityPublic health actionFireMortality rateUnited StatesDisease mortalityHealth actionsMortality outcomesAir 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 characteristicsChinaMatter
2020
Particulate matter pollution and risk of outpatient visits for psychological diseases in Nanjing, China
Lowe SR, Wang C, Ma Y, Chen K. Particulate matter pollution and risk of outpatient visits for psychological diseases in Nanjing, China. Environmental Research 2020, 193: 110601. PMID: 33307087, DOI: 10.1016/j.envres.2020.110601.Peer-Reviewed Original ResearchConceptsMental health service utilizationHealth service utilizationOutpatient visitsService utilizationAdverse mental health conditionsDaily outpatient visitsMental health servicesMental health conditionsMental health systemQuasi-Poisson regressionDiseases DepartmentExposure-response curvesMajor hospitalsHealth servicesHealth systemLag0 dayHealth conditionsVisitsPsychological diseasesSame dayMale participantsAir pollutionRiskAssociationDays