What materials should be used for shelving in a pesticide storage area?

• A. Chip board
• B. Metal
• C. Concrete block
• D. Wood

Answer: (C)

In a pesticide storage area, shelving should be made from materials that won’t absorb liquids, are easy to clean, and resist chemical exposure. Concrete block fits this need because it’s solid, non-porous, and inert, so pesticide residues won’t seep in and it’s easy to wipe down after spills. It also provides strong support for heavy containers and won’t deteriorate with exposure to chemicals.

Porous materials like chip board or wood can soak up pesticides, swell or warp, and are harder to decontaminate. Metal shelves can be strong but may rust or corrode unless they’re specially treated or coated for chemical resistance, which adds cost and maintenance.