Air pollution and its impacts on health in Vitoria, Espirito Santo, Brazil

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OBJECTIVE: To analyze the impact of air pollution on respiratory and cardiovascular morbidity of children and adults in the city of Vitoria, state of Espirito Santo.METHODS: A study was carried out using time-series models via Poisson regression fromhospitalization and pollutant data in Vitoria, ES, Southeastern Brazil, from 2001 to 2006. Fineparticulate matter (PM10), sulfur dioxide (SO2), and ozone (O3) were tested as independentvariables in simple and cumulative lags of up to five days. Temperature, humidity and variablesindicating weekdays and city holidays were added as control variables in the models.RESULTS: For each increment of 10 μg/m3 of the pollutants PM10, SO2, and O3, the percentage ofrelative risk (%RR) for hospitalizations due to total respiratory diseases increased 9.67 (95%CI11.84-7.54), 6.98 (95%CI 9.98-4.17) and 1.93 (95%CI 2.95-0.93), respectively. We found %RR = 6.60(95%CI 9.53-3.75), %RR = 5.19 (95%CI 9.01-1.5), and %RR = 3.68 (95%CI 5.07-2.31) for respiratorydiseases in children under the age of five years for PM10, SO2, and O3, respectively. Cardiovasculardiseases showed a significant relationship with O3, with %RR = 2.11 (95%CI 3.18-1.06).CONCLUSIONS: Respiratory diseases presented a stronger and more consistent relationshipwith the pollutants researched in Vitoria. A better dose-response relationship was observedwhen using cumulative lags in polynomial distributed lag models




de Freitas, C. U., de Leon, A. P., Juger, W., & Gouveia, N. (2016). Air pollution and its impacts on health in Vitoria, Espirito Santo, Brazil. Revista de Saude Publica, 50.

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