RIZWAN HAIDER; MEHROSE KHALID; MUHAMMAD FAROOQ ALAM. Five-Year PM2.5 Trends in Lahore: A Monthly and Annual Overview (2019–2023). Pakistan Journal of Science, [S. l.], v. 77, n. 02, p. 272–276, 2025. DOI: 10.57041/vol77iss02pp272-276. Disponível em: https://pjosr.com/index.php/pjs/article/view/1445. Acesso em: 14 oct. 2026.