Texas Pesticide Applicator Practice Exam

Can wind help reduce air pollution during an inversion?

1. False

2. True

3. Only at high speeds

4. Only in rural areas

The correct answer is: True

Wind can indeed help reduce air pollution during an inversion. An inversion occurs when a layer of warm air traps pollutants close to the ground, preventing them from dispersing into the atmosphere. When wind is present, it can mix and disperse the trapped air, helping to dilute and disperse the concentrations of pollutants. This mixing action allows pollutants to escape and be carried away, improving air quality in the affected area. In contrast, still air during an inversion can exacerbate pollution problems as the pollutants remain concentrated. While the degree to which wind can help reduce pollution can vary depending on its speed and direction, the presence of wind generally promotes better air quality by aiding in the vertical and horizontal mixing of air.