What specific measures are required for unpaved roads under Rule 310?

• A. Regular paving of the roads
• B. Treatment with dust suppressants and watering
• C. None; unpaved roads are exempt
• D. Only occasional grading is required

Answer: (B)

The requirement for unpaved roads under Rule 310 includes the treatment with dust suppressants and watering. These measures are essential for reducing dust emissions that can negatively impact air quality and the environment.

By applying dust suppressants, which may include various chemicals or natural substances, the fine particles that would otherwise become airborne are bound together, thereby reducing dustiness. Additionally, regular watering helps to keep the surface damp, further mitigating the release of dust into the air, especially during dry, windy conditions when dust is more likely to become airborne.

Other options, such as regular paving or grading alone, may not effectively address dust generation on unpaved roads. Paving is impractical for all types of unpaved roads due to cost and usage considerations, while simply grading without supplemental measures may not sufficiently control dust levels. Therefore, the combination of watering and the use of dust suppressants is a proactive approach to maintaining compliance with air quality regulations and protecting public health.