What is a potential hazard for storage pest fumigation in common walls?

The potential hazard for storage pest fumigation in common walls is the leakage of gas to neighboring structures. Fumigants used in pest control are volatile and can migrate through shared walls or any openings between areas. When gas leaks into adjacent properties, it poses risks not only to the integrity of the fumigation process but also to people, animals, and ecosystems outside the target area. This leakage can compromise the effectiveness of the treatment and can also lead to legal and regulatory issues if the gas affects non-target areas or individuals. Proper sealing and monitoring are essential to minimize this hazard during fumigation operations.

In contrast, increased humidity, development of resistant pest populations, and uncontrolled pest resurgence are all significant considerations in pest management but do not specifically relate to the immediate hazards presented by fumigation in structures with common walls. These factors can affect the long-term efficacy of pest control efforts, but they do not represent the immediate risk of gas migration during the fumigation process.