Why might the evening afterglow potentially show deeper red hues compared to the pre-dawn glow?

Answer

The atmosphere tends to accumulate more fine particulate matter and moisture during the day.

Atmospheric conditions often differ between morning and evening; increased particulate matter and moisture accumulation due to daytime activities can lead to more pronounced scattering and consequently deeper red colors in the evening glow.

Why might the evening afterglow potentially show deeper red hues compared to the pre-dawn glow?
skyatmosphereglowsunsettwilight