WILLIAMS, J.; PETRICK, L.; WICHMANN, J. PM2.5 chemical composition and geographical origin of air masses in Cape Town, South Africa. Clean Air Journal, [S. l.], v. 31, n. 1, 2021. DOI: 10.17159/caj/2021/31/1.10475. Disponível em: https://cleanairjournal.org.za/article/view/10475. Acesso em: 28 jan. 2022.