I hear people today warning each other, "Oh today the air quality is suppose to be horrible." "OH, don't go outside between Noon and 3:00!." "Suppose to be horrible air quality today."
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First, if you call it "air quality", it's not a problem. When it has a name like smog, it's a problem.
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Second, if you can see the sun, you're fine.
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Take it from someone who lived through 100+ days of stage 1 alerts year in the 1970's - and happy to have them.
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Never trust air you can't see.