Outdoor concentrations of PM2.5, CO and CO2 are generally about 10 μg/m3, 0.3 PPM and 450 PPM, respectively. However, close to air pollution sources and/or with circumstances of little ventilation, concentrations can be much higher. This is also witnessed by students of Arba Minch University. So far, they have set records of measured concentrations at 1,800 μg/m3 PM2.5 ( coffee ceremony) 1,040 PPM CO (student’s cafeteria kitchen) and 4.200 PPM CO2 (a closed dormitory with students present).
The measurements
33 groups of students from Arba Minch University (Bachelor studies Meteorology & Hydrology, year 2, and Water Supply & Environmental Engineering, year 4) are conducting a small air pollution measurement research. You can read more about this on the project page.