Coyhaique PM2.5 (fine particulate matter) AQI is 162 - Coyhaique PM10 (respirable particulate matter) AQI is 59 - Coyhaique NO2 (nitrogen dioxide) AQI is n/a - Coyhaique SO2 (sulfur dioxide) AQI is 1 - Coyhaique O3 (ozone) AQI is 15 - Coyhaique CO (carbon monoxide) AQI is 9 -