What is the term for the temperature of air at saturation?

The term for the temperature of air at saturation is indeed the dew point. The dew point refers to the specific temperature at which air becomes saturated with moisture, meaning it can no longer hold all the water vapor present, leading to condensation. When the temperature drops to the dew point, water vapor in the air condenses into liquid water, which can manifest as dew or fog.

Understanding the dew point is crucial in mine ventilation and safety because it directly impacts humidity levels, potential condensation within the mine, and overall air quality. Monitoring the dew point helps in maintaining a safe and comfortable working environment underground, preventing issues like excess moisture that can lead to corrosion, reduced equipment efficiency, or an increased risk of mold and other health hazards.

The other terms, while related to temperature, do not accurately describe the saturation temperature of air. The condensation point is more general and does not specifically denote the temperature at saturation, while the boiling point and freezing point refer to phase changes of water at different conditions of temperature and pressure, not the specific saturation temperature of air.