Which type of pesticide formulation is least likely to cause inhalation hazards?

Granules are considered the formulation least likely to cause inhalation hazards because they are composed of larger particles that settle quickly and do not create a significant amount of airborne dust during application. This characteristic minimizes the risk of inhalation, as the granules tend to remain on the ground or targeted areas rather than becoming airborne.

In contrast, wettable powders, flowables, and ultra-low volume formulations may produce fine particles or droplets that can easily become airborne during application, increasing the risk of inhalation exposure to those applying the pesticide or individuals nearby. Therefore, granules are a safer option in terms of inhalation risk, making them suitable for applications where controlling exposure is a priority.