AirNow.gov
AirNow is your one-stop source for air quality data. Our recently redesigned site highlights air quality in your local area first, while still providing air quality information at state, national, and world views.
National Maps | AirNow.gov
Smoke from several wildfires in the Los Angeles, California area is affecting air quality in portions of the state. Check the AirNow Fire and Smoke Map for local air quality conditions, fire locations and smoke plumes.
Air Quality Index (AQI) Basics - AirNow
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 (AQI) | AirNow.gov
Local air quality can affect our daily lives. Like the weather, it can change from day to day. EPA developed the Air Quality Index, or AQI, to make information available about the health effects of the five most common air pollutants, and how to avoid those effects.
AQI value of 50 represents good air quality with little or no potential to affect public health, while an AQI value over 300 represents air quality so hazardous that everyone may experience serious effects. An AQI value of 100 generally corresponds to the national air quality standard for the pollutant, which is the level EPA has set
AirNow Fire and Smoke Map
This map shows fine particle pollution from wildfires and other sources. It does not show air toxics or other pollutants. For ozone, go to AirNow . Learn more about this map
Maps and Data | AirNow.gov
Smoke from several wildfires in the Los Angeles, California area is affecting air quality in portions of the state. Check the AirNow Fire and Smoke Map for local air quality conditions, fire locations and smoke plumes.
State AQI | AirNow.gov
Air Quality Index (AQI) AQI Basics Ozone Using the Air Quality Index Particle Pollution AQI Calculators Action Days Air Quality and Health Activity Guides Your Health Asthma and Heart Disease Health Professionals Air Quality Awareness Week (EPA)
• Ozone in the air we breathe can cause serious health problems, including breathing difficulty, asthma attacks, lung damage, and even death from lung disease. • Ozone forms in sunlight, usually on hot summer days.
This guidance is designed to aid local agencies in reporting air quality using the U.S. Air Quality Index as required in 40 CFR Part 58.50 and according to 40 CFR Appendix G to Part 58. I. INTRODUCTION TO THE AQI