air quality index
Atmospheric contamination scale
The air quality index is a standardized scale measuring how polluted the air is and what health effects it may pose.
Usually abbreviated AQI, it translates complex pollution data into a simple number—higher means worse air: The air quality index hit 150, so we kept the kids indoors.
Different countries use different scales.
- ozoneTriatomic oxygen allotrope
- PM2.5Microscopic air pollution particles
- particulate matterFine airborne solid fragments
- wildfire smokeAirborne particles from uncontrolled burns
- industrial emissionsPollutants released by manufacturing
asthma · smog · sulfur dioxide · Clean Air Act · carbon monoxide · vehicle exhaust · eye irritation · nitrogen dioxide · chronic bronchitis · EPA standards · seasonal variations · breakpoints · respiratory diseases · emissions · lung cancer · allergies · air purifiers · dust storms
- environmental dataclimate data, carbon dioxide level, ozone level, weather data, temperature rise
- Weather Scalestemperature scale, wind chill, AQI, humidex, Celsius
- Environmental MetricspH level, turbidity, COD, dissolved oxygen, carbon footprint
- China Environmentgiant panda, Yangtze River, Yellow River, Three Gorges Dam, Tibetan Plateau
- pollution metricsAQI, particulate matter, PM2.5, carbon monoxide, nitrogen dioxide
- smogsmog, photochemical smog, industrial smog, urban smog, smog alert
air quality indexUV index
Solar intensity measurement
weather forecast · pollen count · water temperature · humidity reading · barometric pressure
quality, index, airy, airing, aired, airless, qualities, airily, indexed