Which term describes the brownish haze formed by the breakdown of pollutants under sunlight?

Which term describes the brownish haze formed by the breakdown of pollutants under sunlight?

• A. Rain
• B. Photochemical Smog
• C. Cumulonimbus
• D. Blizzard

Answer: (B)

Sunlight-driven chemical reactions among air pollutants create ground-level ozone and related compounds, producing a brownish haze called photochemical smog. When sunlight hits pollutants such as nitrogen oxides from vehicle exhaust and volatile organic compounds from fuels, it drives reactions that form ozone and other oxidants near the surface. This gives the air a brown tint and can irritate eyes and lungs, especially in sunny, crowded urban areas with heavy traffic and little air movement. This phenomenon is different from rain (which cleans pollutants from the air), a cumulonimbus cloud (a tall storm cloud), or a blizzard (a severe snowstorm).

Sunlight-driven chemical reactions among air pollutants create ground-level ozone and related compounds, producing a brownish haze called photochemical smog. When sunlight hits pollutants such as nitrogen oxides from vehicle exhaust and volatile organic compounds from fuels, it drives reactions that form ozone and other oxidants near the surface. This gives the air a brown tint and can irritate eyes and lungs, especially in sunny, crowded urban areas with heavy traffic and little air movement. This phenomenon is different from rain (which cleans pollutants from the air), a cumulonimbus cloud (a tall storm cloud), or a blizzard (a severe snowstorm).