CHAUDHARY, Priyanka et al.
 Assessment of ambient air quality in Northern India using Air Quality Index method.
<strong>Bulletin of Environmental and Scientific Research</strong>, [S.l.], v. 2, n. 2-3, p. 12-17, nov. 2013.
ISSN 2278-5205.
Available at: &lt;<a href="https://www.besr.org.in/index.php/besr/article/view/39" target="_new">https://www.besr.org.in/index.php/besr/article/view/39</a>&gt;. Date accessed: 21 apr. 2026.