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Metropolitan Washington Area Forecast
Air Quality Forecast
Current Air Quality Levels |
Date |
Current Air Quality - Ozone |
January 17, 2014 |
|
Date |
Current Air Quality - Particulate Matter |
January 17, 2014 |
|
|
Air Quality Index (AQI) Scale |
AQI
Range |
AQI
Category |
AQI
Colors |
0 - 50 |
Good |
|
51 - 100 |
Moderate |
|
101 - 150 |
Unhealthy for
Sensitive Groups |
|
151 - 200 |
Unhealthy |
|
201 - 300 |
Very Unhealthy |
|
|
What is
Air Quality Index (AQI)?
The AQI is an index for reporting daily air quality.
It tells you how clean or polluted your air is, and what associated
health concerns you should be aware of. The AQI focuses on health
effects that can happen within a few hours or days after breathing
polluted air. EPA uses the AQI for five major air pollutants regulated
by the Clean Air Act: ground-level ozone, particulate matter,
carbon monoxide, sulfur dioxide, and nitrogen dioxide. For each
of these pollutants, EPA has established national air quality
standards to protect against harmful health. For more information
on the Air Quality Index, view EPA's AQI Brochure. |
Air Quality Hotline: (202) 589-1212