Application of 8 steps of fine dust based on WHO standardProvides air pollution levels for 6 items (sulfite gas, carbon monoxide, nitrogen dioxide, fine dust (PM10, PM2.5), ozone) by time and applies the integrated air environment index reflecting human influence and bodily pollution. Through the air pollution situation, we have provided 8 grades and colors for easy understanding at a glance.In addition, the measurement data is collected and expressed every five minutes by the Korea Environmental Management Corporation.