막연히 연기와 재 때문일까 생각을 했더니 많은 사람들의 궁금증을 풀어주네요.

연기 입자의 크기 때문에 적생광이 더 많이 보이나봅니다.
그래서 불이 나는 지역의 하늘이 붉은색으로 보이는 경향이 있다고..



https://www.kron4.com/news/bay-area/why-is-the-sky-orange-in-the-bay-area/

Why is the sky orange in the Bay Area?

SAN FRANCISCO (KRON) — Smokey air cast an orange shade over the Bay Area sun and skies Tuesday morning, leaving people to wonder what 2020 is bringing us now.

It may look ominous, but it wasn’t the sign of anything bad incoming. Superstitions aside, KRON4 Meteorologist John Shrable says we’re seeing the yellowish-orange hue because of a smokey layer of air that will begin to settle down.

The Royal Society of Chemistry says reddish skies are common when fires are burning — it’s because smoke particles scatter sunlight in a way that we see red.

Due to the size of smoke particles, they are better at scattering long wavelengths of red light. Normally, blue light’s short wavelengths are much easier to scatter when there are regular amounts of nitrogen and oxygen in the air, according to the RSC.

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