What is the required opacity percentage for both unpaved parking lots and access roads?

• A. 15%
• B. 20%
• C. 25%
• D. 30%

Answer: (B)

The correct opacity percentage for unpaved parking lots and access roads is set at 20%. This standard helps ensure that these areas do not contribute excessively to air pollution or visibility issues caused by dust. Opacity is a measurement of the amount of light that is blocked by particles in the air, and maintaining this standard is essential for protecting air quality and preventing dust nuisance in surrounding areas.

By establishing a limit of 20% opacity, regulatory measures aim to mitigate the environmental impact of dirt and dust generated from such surfaces, promoting cleaner air and better health outcomes for communities. This limit is based on scientific studies and assessments that balance operational needs while addressing environmental concerns. Understanding and adhering to this opacity requirement helps avoid regulatory penalties and fosters responsible management of dust emissions from unpaved surfaces.