What is an atmospheric inversion and how does it trap air pollutants?

An atmospheric inversion occurs when a layer of warm air traps cooler air at the surface, preventing it from rising. This phenomenon creates a stable atmosphere, which can lead to the accumulation of pollutants, as the cooler air, often containing smoke, dust, and other contaminants, is confined beneath the warm layer. As a result, air quality can deteriorate significantly, especially in urban areas, leading to health issues and environmental concerns. Inversions are more common during certain weather conditions, such as cold nights or during winter months.