by Zenn Marie Cainglet, Aubrey May De Francisca, Paola Banaga, Shane Marie Visaga, Melliza Templonuevo Cruz, James B. Simpas, Maria Obiminda Cambaliza, Fr. Jose Ramon Villarin, SJ, and Fr. Daniel McNamara, SJ Summary The 24-hour averaged PM2.5 concentrations revealed a slight increase (up...