s570

S570

ARTIGO ARTICLE

Associação entre poluição atmosférica e doenças respiratórias e cardiovasculares na cidade de
Itabira, Minas Gerais, Brasil
Association between air pollution and respiratory and cardiovascular diseases in Itabira, Minas Gerais
State, Brazil

Alfésio Luís Ferreira Braga 1,2
Luiz Alberto Amador Pereira 1
Marly Procópio 3
Paulo Afonso de André 1
Paulo Hilário do Nascimento Saldiva 1

Abstract
1 Faculdade de Medicina,
Universidade de São Paulo,
São Paulo, Brasil.
2 Faculdade de Medicina,
Universidade de Santo
Amaro, São Paulo, Brasil.
3 Secretaria Municipal de Saúde de Itabira,
Itabira, Brasil.

Correspondência
A. L. F. Braga
Laboratório de Poluição
Atmosférica Experimental,
Faculdade de Medicina,
Universidade de São Paulo.
Av. Dr. Arnaldo 455, 1º andar,
São Paulo, SP
01246-903, Brasil. [e-mail] Introdução

The city of Itabira, Minas Gerais State, Brazil, is located in the Espinhaço Mountain Range, an area that features large-scale mechanized iron ore pit mines. The current study evaluates the acute effects of inhalable particulate matter (PM 10 ) in terms of emergency room visits due to respiratory and cardiovascular diseases in Itabira.
Generalized additive Poisson regression models were adopted, controlling for temperature, humidity, and both short and long-term seasonality. Increases of 10µg/m3 in PM10 were associated with increases in respiratory emergency room visits of 4% (95%CI: 2.2-5.8), at lags 0 and 1 for children and adolescents younger than 13 years of age, and of 12% (95%CI: 8.5-15.5) on the three subsequent days for adolescents (13 to 19 years of age). For cardiovascular diseases, the effect was acute (4%; 95%CI: 0.8-8.5) and mainly for the 45 to 64 age group. These results show that
PM10 generated by open pit mining can lead to health problems in the exposed population.

A poluição atmosférica nos centros urbanos tem sido identificada como um grave problema de