“…Most have investigated the correlation between traffic-related noise and air pollution, focusing on gaseous pollutants, principally NO 2 and NO (Klaeboe et al, 2000;Linares et al, 2006;Foraster et al, 2011;Ross et al, 2011;Kim et al, 2012), PM 10 (Linares et al, 2006;Fung and Lee, 2011;Kim et al, 2012), PM 2.5 (Ross et al, 2011) and hydrocarbons (Ross et al, 2011;Kim et al, 2012). Some studies have focused on the correlation between noise and total number concentrations (TNC).…”