Air Quality Index (AQI) | AirNow.gov
The Air Quality Index (AQI) tells you how clean or polluted your outdoor air is and the associated health effects that may be of concern.
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 values. The higher the AQI value, the greater the level of …
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: For more information about the pollutants included in the AQI scale, please refer to: PM 2.5 instant-cast scale. Understanding PM 10 vs PM 2.5. Ozone …
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 are six air pollutants measured in the index formula, including: PM2.5; PM10; carbon monoxide; sulfur dioxide; nitrogen dioxide; ground-level ozone
Unhealthy Air Quality – What To Do | AQI Numbers - University …
Feb 25, 2022 · AQI of 101 to 150 is unhealthy air quality for sensitive groups, such as people with asthma or other lung conditions. People without these conditions usually do not have symptoms. The color code is orange.
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 smoke, power plants and factories, vehicle exhaust, and other sources), as well as four other widespread air pollutants.
AirNow Interactive Map - US EPA
The air quality forecast is a prediction of the day’s overall AQI issued by state and local air quality forecasters. Each dot on this map represents a city or reporting area that issues a forecast. Read more about the air quality forecast. Click on a dot to see forecast info for …
Air Quality Index - National Weather Service
The Air Quality Index (AQI) is used for reporting daily air quality. It tells you how clean or polluted your air is, and what associated health effects might be a concern for you. The AQI focuses on health effects you may experience within a few hours or days after breathing polluted air.
The AQI is an index for reporting daily air quality. It tells you how clean or unhealthy your air is, and what associ-ated health efects might be a concern. The AQI focuses on health efects you may experience within a few hours or days after breathing unhealthy air.
Live Animated Air Quality Map (AQI, PM2.5...) | IQAir
Discover AirVisual Map, live world air pollution and air quality index (AQI) interactive 2D animated map combining PM2.5 data from public government, air quality stations, our community.