CAIRNCROSS, E.; JOHN, J.; ZUNCKEL, M. METHODOLOGY FOR DEVELOPING AN AIR POLLUTION INDEX (API) FOR SOUTH AFRICA. Clean Air Journal, [S. l.], v. 13, n. 2, 2003. DOI: 10.17159/caj/2003/13/2.7153. Disponível em: https://cleanairjournal.org.za/article/view/7153. Acesso em: 28 mar. 2024.