What is the purpose of dust suppressants for unpaved roads under Rule 310?

• A. To improve the structural integrity of the road
• B. To reduce the visibility of dust emissions
• C. To minimize dust emissions into the air
• D. To increase the road's lifespan

Answer: (C)

The purpose of dust suppressants for unpaved roads, as outlined under Rule 310, is primarily to minimize dust emissions into the air. When vehicles travel on unpaved surfaces, they can disturb the soil and create dust particles that become airborne. This dust can negatively impact air quality and pose health risks to nearby residents and wildlife.

By applying dust suppressants, the fine particles in the soil are bonded together, preventing them from being easily kicked up into the air. This process significantly reduces the amount of dust generated during activities such as driving, thus enhancing overall air quality. The goal is to comply with air quality regulations and protect public health by mitigating dust pollution.

While improving the structural integrity of the road, increasing its lifespan, and reducing the visibility of dust emissions may be beneficial side effects of using dust suppressants, the primary intent is focused on controlling dust emissions to protect health and the environment.