Air Quality Index Scale and Color Legend - aqicn.org
The table below defines the Air Quality Index scale as defined by the US-EPA 2016 standard:
Air Quality Index - American Lung Association
Sep 18, 2024 · The Air Quality Index, or AQI, is the system used to warn the public when air pollution is dangerous. The AQI tracks ozone (smog) and particle pollution (tiny particles from …
AQI Basics | AirNow.gov
The U.S. Air Quality Index (AQI) is EPA's tool for communicating about outdoor air quality and health. The AQI includes six color-coded categories, each corresponding to a range of index …
Figure 14: Air Quality Index (AQI) levels of health concern. - US …
"Unhealthy" (151 - 200) When air quality is in this range, any individual who is active outdoors may experience the respiratory effects described above. Members of sensitive groups are …
World's Air Pollution: Real-time Air Quality Index
Check out the real-time air pollution map, for more than 80 countries. Can not find your city on the map? The GAIA air quality monitor uses laser particle sensors to measure in real-time PM2.5 …
Patient Exposure and the Air Quality Index | US EPA
Dec 17, 2024 · Since levels rarely exceed a value of 200 in the United States, in most cases only the range from 0 to 300 is shown. The higher the AQI value, the greater the level of pollution …
Unhealthy Air Quality – What To Do | AQI Numbers - University …
Feb 25, 2022 · AQI of 151 to 200 is very unhealthy for sensitive people. They may experience severe respiratory symptoms. People without lung problems may also experience symptoms. …
What is the air quality index (AQI)? | IQAir
Aug 4, 2018 · The Air Quality Index (AQI) is a measurement of air pollutant concentrations in ambient air pollution and their associated health risks. Air pollutants measured in AQI. There …
Understanding air quality and the air quality index - HealthPartners
An AQI of 200 and above means the amount of pollution in the air has reached dangerous levels for everyone, regardless of their current health or planned outdoor activities. The Air Quality …
Normal Range of Air Quality Index (AQI) Explained- HealthKart
Jan 1, 2025 · Discover what the normal range of the Air Quality Index (AQI) means, its impact on health, and how to interpret AQI levels for better air quality awareness.