The use of tree barks to monitor traffic related air pollution: a case study in São Paulo–Brazil - Moreira, Tiana Carla Lopes; Amato-Lourenço, Luis Fernando; Tunes, Gisela; André, Carmen Diva Saldiva de; André, Paulo Afonso de; Barrozo, Ligia Vizeu; Singer, Júlio da Motta; Saldiva, Paulo Hilário Nascimento; Saiki, Mitiko; Locosselli, Giuliano Maselli (Frontiers in Environmental Science, 2018)