What does B-C represent in the Pasquill stability classes?

In the context of Pasquill stability classes, B-C refers to stability classes specifically defined to represent certain atmospheric conditions. Stability classes are crucial in understanding atmospheric dispersion and predicting how pollutants disperse in the air. Class B represents moderately stable conditions with good dispersion potential due to daytime heating, while Class C indicates slightly unstable conditions with moderate dispersion potential.

B-C in this context highlights the range of stability that influences how pollutants are transported in the atmosphere. Recognizing this range helps meteorologists and environmental scientists assess dispersion under varying atmospheric conditions, which is essential for air quality management and public health protection.

This understanding allows for better predictive models when evaluating the impacts of emissions on air quality, as stability classes play a significant role in determining the height of dispersion and the distance pollutants will travel from the source.