Vehicle emissions and 'PM IND. 2.5' mass concentrations in six Brazilian cities - Andrade, Maria de Fátima; Miranda, Regina Maura de; Fornaro, Adalgiza; Kerr, Américo Adlai Franco Sansigolo; Oyama, Beatriz Sayuri; André, Paulo Afonso de; Saldiva, Paulo Hilário Nascimento (Air Quality, Atmosphere & Health, 2010)