Bansomdejchaopraya Rajabhat University, Bangkok PM2.5 (fine particulate matter) AQI is 42 - Bansomdejchaopraya Rajabhat University, Bangkok PM10 (respirable particulate matter) AQI is 20 - Bansomdejchaopraya Rajabhat University, Bangkok NO2 (nitrogen dioxide) AQI is 9 - Bansomdejchaopraya Rajabhat University, Bangkok SO2 (sulfur dioxide) AQI is 1 - Bansomdejchaopraya Rajabhat University, Bangkok O3 (ozone) AQI is 3 - Bansomdejchaopraya Rajabhat University, Bangkok CO (carbon monoxide) AQI is 0 -