Air quality investigation and research for various types of student-oriented indoor environments on a university campus

This study investigated suspended particles (PM2.5 and PM10), formaldehyde, TVOC, ozone, carbon dioxide, monoxide in seven student-oriented indoor environments, which are inclusive of the library room (A), computer classroom (B), teacher student compound office (C), classroom-1 (D), classroom-2 (E), cafeteria (F), underground motorcycle parking lot (G) on a university campus. We monitored each environment during open hours for at least three weekdays. The averaged concentrations CO 2 environments A, B, C, D all exceeded standard (1000 ppm) with values 2,628±375, 1,908±613, 1,752±495, 1,076±280 ppm. corresponding minimum maximum CO2 were 1,101 3,314, 836 3,272, 672 2,667, 752 2,040 ppm, respectively. Sites D, F, G where TVOC (560 ppb) 829±21, 920±192, 582±8, 607±15, 640±102 815±205 ppb, Both PM2.5 PM10 site F standards (i.e., 35 μg/m 3 75 ) 39±13 103±51 , Three target compounds, CO, O HCHO, below their respective standards.