2024
All-cause, cardiovascular, and respiratory mortality and wildfire-related ozone: a multicountry two-stage time series analysis
Chen G, Guo Y, Yue X, Xu R, Yu W, Ye T, Tong S, Gasparrini A, Bell M, Armstrong B, Schwartz J, Jaakkola J, Lavigne E, Saldiva P, Kan H, Royé D, Urban A, Vicedo-Cabrera A, Tobias A, Forsberg B, Sera F, Lei Y, Abramson M, Li S, Network M, Abrutzky R, Alahmad B, Ameling C, Åström C, Breitner S, Carrasco-Escobar G, de Sousa Zanotti Stagliorio Coêlho M, Colistro V, Correa P, Dang T, de'Donato F, Van Dung, Entezari A, Garcia S, Garland R, Goodman P, Guo Y, Hashizume M, Holobaca I, Honda Y, Houthuijs D, Hurtado-Díaz M, Íñiguez C, Katsouyanni K, Kim H, Kyselý J, Lee W, Maasikmets M, Madureira J, Mayvaneh F, Nunes B, Orru H, Ortega N, Overcenco A, Pan S, Pascal M, Ragettli M, Rao S, Ryti N, Samoli E, Schneider A, Scovronick N, Seposo X, Stafoggia M, De la Cruz Valencia C, Zanobetti A, Zeka A. All-cause, cardiovascular, and respiratory mortality and wildfire-related ozone: a multicountry two-stage time series analysis. The Lancet Planetary Health 2024, 8: e452-e462. PMID: 38969473, DOI: 10.1016/s2542-5196(24)00117-7.Peer-Reviewed Original ResearchConceptsRespiratory mortalityImpact of wildfiresDaily respiratory mortalityDaily cardiovascular mortalityTwo-stage time-series analysisChemical transport modelWildfire activityDaily mortality ratesDaily concentrationsDaily mortalityStudy locationRespiratory deathsWildfireManagement strategiesSource of tropospheric ozoneTransport modelTropospheric ozoneGlobal levelLocation levelMulti-cityRegional levelMortality fractionsEffective riskSouth AmericaCentral America
2023
Global population exposure to landscape fire air pollution from 2000 to 2019
Xu R, Ye T, Yue X, Yang Z, Yu W, Zhang Y, Bell M, Morawska L, Yu P, Zhang Y, Wu Y, Liu Y, Johnston F, Lei Y, Abramson M, Guo Y, Li S. Global population exposure to landscape fire air pollution from 2000 to 2019. Nature 2023, 621: 521-529. PMID: 37730866, PMCID: PMC10511322, DOI: 10.1038/s41586-023-06398-6.Peer-Reviewed Original ResearchShort-term association between ambient air pollution and cardio-respiratory mortality in Rio de Janeiro, Brazil
Cortes T, Silveira I, de Oliveira B, Bell M, Junger W. Short-term association between ambient air pollution and cardio-respiratory mortality in Rio de Janeiro, Brazil. PLOS ONE 2023, 18: e0281499. PMID: 36795640, PMCID: PMC9934392, DOI: 10.1371/journal.pone.0281499.Peer-Reviewed Original ResearchConceptsAmbient air pollutionCardio-respiratory mortalityShort-term associationsAir pollutionRespiratory mortalityExposure to particulate matter <Individual-level mortality dataOdds ratioIndividual exposure to air pollutionExposure to air pollutionCase-crossover study designHealth risk estimatesConditional logistic regression modelsConfidence intervalsEvaluation of public healthParticulate matter <Inverse distance weighting methodExposure assessment methodsIndividual-level dataDistributed lag non-linear modelLogistic regression modelsDistance weighting methodPM10 exposurePollution exposureRio de Janeiro
2022
Drought and ozone air quality in California: Identifying susceptible regions in the preparedness of future drought
Lee H, Bell M, Koutrakis P. Drought and ozone air quality in California: Identifying susceptible regions in the preparedness of future drought. Environmental Research 2022, 216: 114461. PMID: 36181900, DOI: 10.1016/j.envres.2022.114461.Peer-Reviewed Original ResearchConceptsDrought eventsAir qualityAverage relative humidityRelative humidityOzone air qualityProlonged drought conditionsDrought-related changesFuture droughtsInfluence of droughtMeteorological parametersWarm seasonClimate changeOzone concentrationsCool seasonDrought conditionsDroughtSpatial heterogeneityRegional variationCaliforniaSeasonHumiditySusceptible regionsSubstantial regional variationEventsYear 2009Hourly Air Pollutants and Acute Coronary Syndrome Onset in 1.29 Million Patients
Chen R, Jiang Y, Hu J, Chen H, Li H, Meng X, Ji J, Gao Y, Wang W, Liu C, Fang W, Yan H, Chen J, Wang W, Xiang D, Su X, Yu B, Wang Y, Xu Y, Wang L, Li C, Chen Y, Bell M, Cohen A, Ge J, Huo Y, Kan H. Hourly Air Pollutants and Acute Coronary Syndrome Onset in 1.29 Million Patients. Circulation 2022, 145: 1749-1760. PMID: 35450432, DOI: 10.1161/circulationaha.121.057179.Peer-Reviewed Original ResearchConceptsAir pollutionParticulate matterAir pollutants PM<sub>2.5</sub>, PConcentrations of PM<sub>2.5</sub>Short-term exposure to ambient air pollutionWorld Health Organization air quality guidelinesHourly concentrations of fine particulate matterConcentrations of fine particulate matterExposure to ambient air pollutionAir quality guidelinesCoarse particulate matterFine particulate matterCriteria air pollutantsAmbient air pollutionHourly air pollutionInterquartile range increaseQuality guidelinesHourly concentrationsAcute coronary syndromeCase-crossover studySORange increaseNitrogen dioxidePollutionSulfur dioxide
2016
Racial isolation and exposure to airborne particulate matter and ozone in understudied US populations: Environmental justice applications of downscaled numerical model output
Bravo MA, Anthopolos R, Bell ML, Miranda ML. Racial isolation and exposure to airborne particulate matter and ozone in understudied US populations: Environmental justice applications of downscaled numerical model output. Environment International 2016, 92: 247-255. PMID: 27115915, DOI: 10.1016/j.envint.2016.04.008.Peer-Reviewed Original Research
2015
The impact of temperature on mortality in a subtropical city: effects of cold, heat, and heat waves in São Paulo, Brazil
Son JY, Gouveia N, Bravo MA, de Freitas CU, Bell ML. The impact of temperature on mortality in a subtropical city: effects of cold, heat, and heat waves in São Paulo, Brazil. International Journal Of Biometeorology 2015, 60: 113-121. PMID: 25972308, PMCID: PMC4644507, DOI: 10.1007/s00484-015-1009-7.Peer-Reviewed Original ResearchConceptsRespiratory mortalityNon-hospital deathsHigher mortality riskCause of deathCardiovascular mortalityStratified analysisMortality riskCold effectsTotal mortalityOlder personsMortalityPercentile of temperatureRiskSão PauloDeathNon-heat wave daysPercentileCold-related mortalitySubtropical cityOverall effectGeneralized linear modelingAir pollution and mortality in São Paulo, Brazil: Effects of multiple pollutants and analysis of susceptible populations
Bravo MA, Son J, de Freitas CU, Gouveia N, Bell ML. Air pollution and mortality in São Paulo, Brazil: Effects of multiple pollutants and analysis of susceptible populations. Journal Of Exposure Science & Environmental Epidemiology 2015, 26: 150-161. PMID: 25586330, DOI: 10.1038/jes.2014.90.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedAged, 80 and overAir PollutantsAir PollutionBrazilCarbon MonoxideCardiovascular DiseasesCase-Control StudiesDeath CertificatesEnvironmental MonitoringFemaleHumansLogistic ModelsMaleMiddle AgedNitrogen DioxideOzoneParticle SizeParticulate MatterRespiratory Tract DiseasesRisk FactorsSex DistributionSocioeconomic FactorsSulfur DioxideConceptsTime of deathSocioeconomic statusTime-stratified case-crossover analysisCase-crossover analysisResidential socioeconomic statusEducation groupHospital deathCardiovascular mortalityNon-accidental mortalityRespiratory mortalityMortality riskHigh education groupEvidence of differencesSignificant associationMortalityEffect estimatesDeathMortality effectsSusceptible populationHealth impactsAmbient monitorsIndividual-level health dataAir pollutionHealth dataAerodynamic diameter
2008
Vulnerability to heat-related mortality in Latin America: a case-crossover study in São Paulo, Brazil, Santiago, Chile and Mexico City, Mexico
Bell ML, O’Neill M, Ranjit N, Borja-Aburto VH, Cifuentes LA, Gouveia NC. Vulnerability to heat-related mortality in Latin America: a case-crossover study in São Paulo, Brazil, Santiago, Chile and Mexico City, Mexico. International Journal Of Epidemiology 2008, 37: 796-804. PMID: 18511489, PMCID: PMC2734062, DOI: 10.1093/ije/dyn094.Peer-Reviewed Original ResearchEffect Modification by Community Characteristics on the Short-term Effects of Ozone Exposure and Mortality in 98 US Communities
Bell ML, Dominici F. Effect Modification by Community Characteristics on the Short-term Effects of Ozone Exposure and Mortality in 98 US Communities. American Journal Of Epidemiology 2008, 167: 986-997. PMID: 18303005, PMCID: PMC2430754, DOI: 10.1093/aje/kwm396.Peer-Reviewed Original ResearchConceptsBlack/African American populationsHigher effect estimatesHigh health burdenEffect modificationHealth burdenUS urban communitiesMortality riskAfrican American populationShort-term exposureHealth statusShort-term effectsCommunity-level characteristicsNational MorbidityMortalityUS communitiesEffect estimatesExposureOzone exposureCommunity-specific characteristicsUS CensusRiskMorbidityUrban communitiesPopulationPrevalence
2007
Potential Confounding of Particulate Matter on the Short-Term Association between Ozone and Mortality in Multisite Time-Series Studies
Bell ML, Kim JY, Dominici F. Potential Confounding of Particulate Matter on the Short-Term Association between Ozone and Mortality in Multisite Time-Series Studies. Environmental Health Perspectives 2007, 115: 1591-1595. PMID: 18007990, PMCID: PMC2072830, DOI: 10.1289/ehp.10108.Peer-Reviewed Original ResearchConceptsPotential confoundingShort-term effectsMultisite time-series studyShort-term associationsMortality associationLikely confoundersU.S. urban communitiesShort-term exposureStudy daysTime-series studyMortalityStudy periodEffect estimatesConfoundersFurther investigationAssociationAmbient exposureMortality relationshipConfoundingDaysAerodynamic diameterExposureCovariatesDaily PM concentrationsUrban communitiesThe effect of sandstorms and air pollution on cause-specific hospital admissions in Taipei, Taiwan
Bell ML, Levy JK, Lin Z. The effect of sandstorms and air pollution on cause-specific hospital admissions in Taipei, Taiwan. Occupational And Environmental Medicine 2007, 65: 104. PMID: 17626134, DOI: 10.1136/oem.2006.031500.Peer-Reviewed Original ResearchMeSH KeywordsAir PollutantsAir PollutionAsthmaCarbon MonoxideCerebrovascular DisordersEnvironmental ExposureEnvironmental MonitoringFourier AnalysisHospitalizationHumansMyocardial IschemiaNitrogen DioxideOzoneParticle SizeParticulate MatterPneumoniaSilicon DioxideSulfur DioxideTaiwanUrban HealthWeatherConceptsCause-specific hospital admissionsHospital admissionIschemic heart disease admissionsCerebrovascular disease admissionsHeart disease admissionsIschemic heart diseaseLag 3 daysSingle-day lagsHeart diseaseAsthma admissionsAdmissionHealth effectsPpb increaseSame dayMug/Air pollutionDiseaseDaysAdditional researchRiskTaipei areaAsthmaEight-year time periodPneumonia
2006
The use of ambient air quality modeling to estimate individual and population exposure for human health research: A case study of ozone in the Northern Georgia Region of the United States
Bell ML. The use of ambient air quality modeling to estimate individual and population exposure for human health research: A case study of ozone in the Northern Georgia Region of the United States. Environment International 2006, 32: 586-593. PMID: 16516968, DOI: 10.1016/j.envint.2006.01.005.Peer-Reviewed Original ResearchThe Exposure–Response Curve for Ozone and Risk of Mortality and the Adequacy of Current Ozone Regulations
Bell ML, Peng RD, Dominici F. The Exposure–Response Curve for Ozone and Risk of Mortality and the Adequacy of Current Ozone Regulations. Environmental Health Perspectives 2006, 114: 532-536. PMID: 16581541, PMCID: PMC1440776, DOI: 10.1289/ehp.8816.Peer-Reviewed Original Research
2005
The avoidable health effects of air pollution in three Latin American cities: Santiago, São Paulo, and Mexico City
Bell ML, Davis DL, Gouveia N, Borja-Aburto VH, Cifuentes LA. The avoidable health effects of air pollution in three Latin American cities: Santiago, São Paulo, and Mexico City. Environmental Research 2005, 100: 431-440. PMID: 16181621, DOI: 10.1016/j.envres.2005.08.002.Peer-Reviewed Original ResearchConceptsMedical visitsHealth outcomesConcentration-response functionsNumerous adverse health outcomesHealth benefitsAdverse health outcomesChild's medical visitsChronic bronchitisAsthma attacksEpidemiological studiesEconomic burdenHealth consequencesHealth endpointsHealth effectsSignificant healthHealth impactsAir pollutionHealthA Meta-Analysis of Time-Series Studies of Ozone and Mortality With Comparison to the National Morbidity, Mortality, and Air Pollution Study
Bell ML, Dominici F, Samet JM. A Meta-Analysis of Time-Series Studies of Ozone and Mortality With Comparison to the National Morbidity, Mortality, and Air Pollution Study. Epidemiology 2005, 16: 436-445. PMID: 15951661, PMCID: PMC3581312, DOI: 10.1097/01.ede.0000165817.40152.85.Peer-Reviewed Original ResearchConceptsTime-series studyShort-term associationsPublication biasNational MorbidityCause-specific mortalityLag 0Meta-analysis resultsPossible publication biasCity-specific estimatesPooled effectRespiratory mortalityMeta-AnalysisTotal mortalityAge groupsMortalityEffect estimatesMorbidityPositive associationNMMAPSInconclusive resultsAir pollution studiesAssociationOzone exposureEvidenceStrong evidenceMetrics Matter: Conflicting Air Quality Rankings from Different Indices of Air Pollution
Bell ML, Hobbs BF, Ellis H. Metrics Matter: Conflicting Air Quality Rankings from Different Indices of Air Pollution. Journal Of The Air & Waste Management Association 2005, 55: 97-106. PMID: 15704544, DOI: 10.1080/10473289.2005.10464596.Peer-Reviewed Original Research
2004
Ozone and Short-term Mortality in 95 US Urban Communities, 1987-2000
Bell ML, McDermott A, Zeger SL, Samet JM, Dominici F. Ozone and Short-term Mortality in 95 US Urban Communities, 1987-2000. JAMA 2004, 292: 2372-2378. PMID: 15547165, PMCID: PMC3546819, DOI: 10.1001/jama.292.19.2372.Peer-Reviewed Original ResearchConceptsUS urban communitiesRespiratory mortalityShort-term exposureNumerous time series studiesShort-term mortalitySingle-day exposureLarge US communitiesAdverse health effectsTotal US populationHospital admissionRespiratory illnessTime-varying confoundersMAIN OUTCOMEUS populationSignificant associationTime-series studyMortalityNational MorbidityUS communitiesEffect estimatesHealth effectsPrevious weekUrban communitiesDaily mortalityPublic health