Can We Measure Air Pollution by Looking at the Color of the Sky?

Yes. Here are some tips you can use to protect yourself when a particle counter or the air quality app data is not available.
1. The night sky turns a red color on polluted days.
2. Sunlight on polluted days turns a yellow or orange color. Clean sunlight is clear and white, almost colorless.
3. Air pollution makes clouds look fuzzy.

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