AirNow.gov Interactive Map: Real-Time U.S. Air Quality

Overview of AirNow.gov

AirNow.gov is the official U.S. EPA platform delivering real-time air quality data and forecasts nationwide. The recently redesigned site prioritizes local-area information, helping users quickly understand conditions in their immediate vicinity. It aggregates monitoring data from permanent stations across the country to provide reliable, publicly accessible air quality updates Source 1.

Key Features of the Interactive Map

The AirNow Interactive Map displays current Air Quality Index (AQI) values across the United States. It highlights fine particle pollution (PM2.5) from wildfires and other sources, along with hourly updates on ozone and particle pollution levels. National maps also identify locations experiencing the highest AQI readings each hour Source 2.

How to Use the AirNow Map

Users can access real-time readings directly from permanent air quality monitors. The platform allows selection of different views and parameters for customized data exploration. Checking local conditions first is recommended before reviewing broader regional trends. The map also supports viewing current conditions alongside upcoming forecasts Source 9.

Air Quality Index (AQI) Explained

The Air Quality Index (AQI) is a standardized scale that translates daily air pollution levels into easy-to-understand health risk categories. It helps millions of people recognize how local air pollution may affect their health, particularly for sensitive groups Source 3.

Additional Resources and Related Tools

For wildfire smoke tracking, AirNow offers a dedicated fire map at fire.airnow.gov that displays PM2.5 pollution from wildfires and other sources Source 7. National maps provide hourly lists of locations with the highest AQI Source 5. For international context, worldwide tools like IQAir offer global air quality readings Source 4.

FAQ

What is the AirNow.gov map used for? It provides real-time U.S. air quality data so users can check current pollution levels and health risks in their area.

How often is the AirNow map updated? The map refreshes hourly with data from permanent monitoring stations reporting to the EPA.

Can I view wildfire smoke levels on AirNow? Yes, the dedicated fire.airnow.gov map displays PM2.5 pollution specifically from wildfires and other sources.

Is AirNow.gov only for the United States? Yes, it covers the U.S. exclusively; for worldwide readings, consider tools like IQAir’s global map.

What does the AQI number on the map mean? The Air Quality Index (AQI) is a standardized scale that translates pollution levels into health risk categories for the public.

Do I need an account to use the AirNow map? No account is required; the map and all data are freely accessible to the public.