Particulate matter fingerprints in biofuel impacted tunnels in South America's largest metropolitan area - Pereira, Guilherme Martins; Nogueira, Thiago; Kamigauti, Leonardo Yoshiaki; Santos, Djacinto Monteiro dos; Nascimento, Emerson Queiroz Mota do; Martins, José Vinicius; Vicente, Ana; Artaxo Netto, Paulo Eduardo; Alves, Célia; Vasconcellos, Pérola de Castro; Andrade, Maria de Fátima (Science of the Total Environmen, 2023)