Air pollution significantly impacts sky colors and visibility through several mechanisms. Particulate matter and aerosols in polluted air affect light transmission and scattering in the following ways:
- Creates hazy, whitish-gray skies by increasing scattered light
- Reduces visibility and viewing distance
- Intensifies sunset colors due to increased particle scattering
- Can create unusual color effects in urban areas
High levels of pollution can lead to a phenomenon called aerosol optical depth, where particles suspended in the air alter the natural color and clarity of the sky. This effect is particularly noticeable in large cities and industrial areas.