Proper ventilation can also prevent chemicals from affecting other materials in storage. It is essential to store pesticides where their fumes cannot invade areas used by people or pets. Group stored chemicals by type as a precaution against contamination. Dampness is a serious problem, as it reduces the shelf life of many chemicals and causes metal and paper containers to decompose. It is imperative that storage areas be designed so that there is no danger of chemicals being washed into our water by flooding or by accidental spills into water drains.
Temperature extremes can cause physical or chemical changes to pesticide products.
Heat makes chemicals more volatile and unstable. Freezing can cause some types of containers to break open. If specific temperature ranges are required for proper storage, they will be printed on the product label. Keep pesticides in their original containers. A legible product label must be attached to the chemical container.