Today was a Code Red day meaning free busses in the DC area! I miss last year, when Code Orange also warranted free bus rides in VA.
Air quality is a funny thing...I guess it's not that hard to understand. The heat, humidity, lack of a breeze, pollution, it all contributes to a poor reading. But it still feels sort of hard to grasp. Here's the chart!
Watch out for Code Purple! It seems like a doomsday kind of thing.
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