Particulate matter (PM2.5) of biomass burning emissions and respiratory diseases in the south of the Brazilian Amazon

Revista Brasileira de Epidemiologia

Longo, Karla M.¹  Silva, Ageo Mário Cândido da²  Mattos, Inês E.²  Hacon, Sandra S.²  Freitas, Saulo R.¹ 

[1] Instituto Nacional de Pesquisas Espaciais;Fundação Oswaldo Cruz

关键词: Particulate matter;    Biomass burning emission;    Respiratory diseases;    Brazilian Amazon;   

DOI  :  10.1590/S1415-790X2010000200015

学科分类：过敏症与临床免疫学

来源: SciELO

【 摘 要 】

OBJECTIVES:To analyze the morbidity of patients with respiratory diseases and the effectof exposure to particulate matter (PM_2.5) on the occurrence of thesediseases in children from one to four years of age and adults aged to 65 yearsand older in municipalities of the state of Mato Grosso, Brazil, in 2004.
METHODS: Ecological study in two stages: The first was an investigationof the global space autocorrelation of the prevalence of hospital admissionsdue to respiratory diseases and percentage of critical hours of concentrationof particulate matter in the municipalities of the state of Mato Grosso, usingthe Empirical Bayes Smoothing function to minimize random fluctuations of indicatorsand Global Moran's I. The second, a Multiple Spatial Regression Analysis, hadthe prevalence of hospital admissions due to respiratory diseases as the outcomevariable and the annual percentage of critical hours as independent variable.In order to fit the model, proxy variables of air pollution, population healthcareand living conditions variables were used.
RESULTS: No global spatial patterns were observed for hospital admissionsdue to respiratory diseases in the municipalities; however, a high spatial dependenceof the annual percentage of critical hours was detected. In the Multiple SpatialRegression, the models presented significant associations between the annualpercentage of critical hours and numbers of hospital admissions due to respiratorydiseases.
CONCLUSION: We noted that intense production of particulate matter resultingfrom burning in the 'Legal Amazon' can increase the occurrence of respiratorydiseases in vulnerable groups in the municipalities of the state of Mato Grosso,which belongs to the Brazilian Amazon.

【 授权许可】

CC BY