stability class

Stability class is a categorization used in air quality modeling to describe how well the atmosphere can disperse pollutants. It depends on weather conditions like temperature, wind, and sunlight. Stable conditions (e.g., at night or during calm weather) tend to trap pollutants near the ground, leading to higher concentrations. Unstable conditions (e.g., daytime with strong sunlight and wind) promote fast dispersion, reducing pollution buildup. The stability class helps predict how pollutants spread, ensuring accurate modeling for environmental assessments and health protections.