NABIN SHARMA; KALPANA PATEL; SARVAN KUMAR. Comparison of the air quality within the northern region of India both during and after the lockdown. Journal of Environmental Impact and Management Policy, [S. l.], v. 3, n. 02, p. 38–44, 2023. DOI: 10.55529/jeimp.35.1.6. Disponível em: https://journal.hmjournals.com/index.php/JEIMP/article/view/2505. Acesso em: 4 nov. 2026.