Why should prevailing winds be considered when selecting a site?

• A. Winds determine soil pH.
• B. Winds can carry and deposit pollution onto the site from nearby industrial facilities.
• C. Winds influence temperature only.
• D. Winds affect color of vegetation.

Answer: (B)

Prevailing winds determine how pollutants travel and where they will be deposited. When selecting a site, knowing the typical wind directions and speeds helps assess whether emissions from nearby facilities could be carried toward the site, potentially impacting air quality, odors, and exposure risk for workers and nearby residents. Seasonal wind shifts can change which areas are downwind, so considering meteorological data over time is important. That’s why the best choice is that winds can carry and deposit pollution onto the site from nearby industrial facilities. The other statements don’t fit as well: wind isn’t the primary factor setting soil pH, and it isn’t limited to influencing temperature alone; it also affects moisture and dispersion. Wind can influence plant stress, but it doesn’t determine vegetation color directly.