What is a suitable dust control measure after a project has been completed for more than 30 days?

• A. Pave the area immediately
• B. Establish vegetative ground cover
• C. Leave the area as is to allow natural processes
• D. Limit the use of organic materials

Answer: (B)

Establishing vegetative ground cover is an effective dust control measure after a project has been completed for more than 30 days because it provides a natural barrier against wind and prevents soil erosion. Vegetation, such as grasses or shrubs, can trap dust particles and improve the overall stability of the soil, reducing the likelihood of dust being carried away by the wind.

This approach has long-term benefits as well; the plants not only enhance air quality by trapping particulate matter, but they also contribute to soil health and local biodiversity. By creating a natural environment, vegetative cover promotes sustainability and aligns with best practices for land rehabilitation.

In contrast, paving the area immediately might not be feasible or necessary unless there are specific requirements for surface durability. Leaving the area as is to allow natural processes may not adequately address dust suppression and can lead to increased dust emissions. Limiting the use of organic materials is not directly related to enhancing dust control and may not be beneficial for the ecological restoration of the site.