What risk does improper pesticide storage pose?

Improper pesticide storage poses a significant risk of spills and contamination. When pesticides are not stored according to the manufacturer's recommendations and safety guidelines, they may leak or spill, leading to environmental contamination. This can affect soil, water sources, and non-target organisms, posing risks to human health and the ecosystem. Additionally, improper storage can lead to volatile fumes that could be hazardous in enclosed spaces, increasing the potential for accidents and health hazards.

The other options do not accurately represent the risks associated with improper pesticide storage. For instance, improper storage does not increase the efficacy of a pesticide; in fact, it could decrease effectiveness if the pesticide degrades due to exposure to unsuitable conditions like temperature or humidity. Similarly, it does not enhance pest attraction, as improper storage does not actually change the attractiveness of the pesticide to pests. Lastly, while one might think that improper storage might alter the shelf life, it generally shortens it because exposure to inappropriate conditions can catalyze degradation processes in the chemical formulations. Therefore, spills and contamination remain the most critical concerns associated with inadequate pesticide storage practices.