QUANTIFICATION AND ANALYSIS OF PM2.5 AND ITS PRECURSORS USING GAIN MODEL IN PUNJAB, PAKISTAN. Pakistan Journal of Science, [S. l.], v. 76, n. 2, 2024. DOI: 10.57041/vol76iss2pp%p. Disponível em: https://paas-pk.org/index.php/pjs/article/view/1159. Acesso em: 28 oct. 2025.