What is smog primarily composed of?

Smog is primarily composed of ozone and particulate matter, which are both significant components of air pollution, especially in urban areas. Ozone, a result of chemical reactions between sunlight and pollutants like volatile organic compounds (VOCs) and nitrogen oxides, is a major component of photochemical smog. Particulate matter comprises tiny solid or liquid particles suspended in the air that can originate from various sources, including vehicle emissions, industrial processes, and natural events like wildfires.

The combination of ozone and particulate matter causes health issues, including respiratory problems and cardiovascular diseases, making their presence in smog a significant public health concern. Understanding this composition is crucial in devising strategies for air quality management and pollution reduction, highlighting the need for robust regulations and public awareness to tackle smog effectively.