'PM IND. 2.5' and 'PM IND. 10' chemical composition of urban and biomass burning areas of São Paulo State, Brazil - Vasconcellos, Pérola de Castro; Souza, D. Z; Aurela, Minna; Saarnio, K; Tenila, K; Hillamo, R (World Climate Research Program Open Science Conference - Climate Research in Service to Society, 2011)