Las Vegas Paiute, Clark County PM2.5 (fine particulate matter) AQI is 9 - Las Vegas Paiute, Clark County PM10 (respirable particulate matter) AQI is 8 - Las Vegas Paiute, Clark County NO2 (nitrogen dioxide) AQI is 2 - Las Vegas Paiute, Clark County SO2 (sulfur dioxide) AQI is n/a - Las Vegas Paiute, Clark County O3 (ozone) AQI is 20 - Las Vegas Paiute, Clark County CO (carbon monoxide) AQI is 0 -