AirNow is a comprehensive online platform that provides real-time air quality information across the United States. It offers data on various pollutants, including particulate matter and ozone, helping individuals understand the air quality in their area. Users can access forecasts and health recommendations based on current conditions. The platform is a collaboration between several organizations, including the Environmental Protection Agency (EPA) and state air quality agencies. By utilizing a network of monitoring stations, AirNow aims to raise public awareness about air pollution and its effects on health, encouraging proactive measures to protect communities.