HASHMI, D. R.; KHAN, F. A.; SHAREEF, A.; ABBASI, F. A.; SHEIKH, G. H.; MUNSHI, A. B. Measurement of Atmospheric Concentrations of CO, SO , NO and NOx in Urban Areas of Karachi City, Pakistan: Inorganic Ion Concentrations in Urban Karachi Atmosphere. Biological Sciences - PJSIR, [S. l.], v. 53, n. 1, p. 25–29, 2010. Disponível em: https://v2.pjsir.org/index.php/biological-sciences/article/view/415. Acesso em: 3 may. 2024.