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Gas Leak Closes Stretch of University Drive

Code Orange Air Quality Alert for Metro Area Tuesday and Wednesday

Much of the area saw Code Orange weather on Monday. The EPA advises teleworking for some during a Code Orange air alert.

This AIRNow map is from Monday at 3 p.m., when much of the area was under a "Code Orange." The entire metro region is expected to be under a "Code Orange" air quality alert on Tuesday and Wednesday, due to high temperatures and humidity.
This AIRNow map is from Monday at 3 p.m., when much of the area was under a "Code Orange." The entire metro region is expected to be under a "Code Orange" air quality alert on Tuesday and Wednesday, due to high temperatures and humidity.
Due to expected heat and humidity, the Metro DC area will be under a "Code Orange" air quality alert both Tuesday and Wednesday, according to the Metropolitan Washington Council of Governments. Find regional alerts at Clean Air Partners. 

The National Weather Service predicts temperatures in the 90s; with humidity, it could feel like 100 degrees on Wednesday, forecasters say.

Some areas, including Fairfax County's Franconia area and Arlington County's Aurora Hills were hitting a "Code Orange" on Monday, according to the MWCG.

A "Code Orange" means that the air quality will be unhealthy for sensitive groups — children and adults with respiratory and heart sensitivity should limit outdoor activity.

Other tips for Tuesday and Wednesday from the Environmental Protection Agency:
  • Refuel after dusk; use fuel-efficient vehicles
  • Avoid driving, use transittelework
  • Avoid using aerosol products
The Air Quality Index 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.

A Code Orange is not as bad as the worst air quality, a Code Purple (or "Very Unhealthy") or a Code Red ("Unhealthy").


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