@article{articlec7418d61,
title   = {Urban air pollution: a representative survey of 'PM IND. 2.5' concentrations in six Brazilian cities},
author = {Miranda, Regina Maura de and Andrade, Maria de Fátima and Fornaro, Adalgiza and Astolfo, Rosana and André, Paulo Afonso de and Saldiva, Paulo Hilário Nascimento},
year = {2011},
doi = {10.1007/s11869-010-0124-1},
journal   = {Air Quality Atmosphere & Health}
}