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by countvonbalzac 1073 days ago
The air quality in several cities in the US dropped noticeably after the fireworks. Similar to the air quality after the wildfires.
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Today is usually the worst day of the year for air quality in Los Angeles (where I am).
AQ of 200 this morning in the IE. Fontana pumped explosives into the air for 4-5 hours last night. Spectacle to watch, but this morning, combined with just normal atmospheric conditions, it was about 1/2 mile visibility all over the valley this morning. Orange sunrise to be sure.