The focus is protecting people who work with pesticides in agricultural settings. The Worker Protection Standard targets those who handle, mix, load, or apply pesticides, or who enter treated areas. It aims to prevent pesticide-related illness by requiring employers to provide safety training, appropriate personal protective equipment, decontamination supplies, access to safety information, emergency assistance, and notice about applications and restricted-entry intervals. Owners, dealers, and consumers aren’t the primary group this standard is designed to protect, though safer practices help everyone indirectly.

Pesticide label signal words convey how hazardous the product is. The word Danger is the strongest warning used on labels, indicating the product is highly toxic if swallowed, inhaled, or absorbed through the skin, or it is highly corrosive. This signals that exposure can cause severe health effects, so strict precautions and appropriate PPE are required. Because of that high hazard level, Danger is used for high toxicity, not for low or moderate toxicity, and not for no toxicity.

Mixing and loading pesticides carries the greatest exposure risk because this is the stage where you are directly handling concentrated product and actively transferring it into equipment. The actions of pouring, measuring, and decanting create splash hazards, spills, and aerosols, which can contact skin, eyes, or be inhaled. Even small amounts can become airborne or spread to you as you move between containers and the spray tank. In contrast, final application, while still risky, typically occurs with more containment from the spray equipment and PPE, storage involves sealed containers with less frequent handling, and transport mainly concerns containment and leaks less often than the moment of mixing and loading. Focusing on protection during mixing and loading—use appropriate PPE, work in a well-ventilated area, use spill control measures, and follow approved mixing procedures—helps mitigate the highest exposure risk.

Granular formulations are designed to stay where they are spread, which minimizes drift. Their solid, heavier particles settle quickly and are not easily carried by wind, so they remain near the application site and deliver the active ingredient where it’s intended. This is what gives granules their low drift potential. Granules don’t dissolve instantly in water; they’re made to release the active ingredient gradually as moisture interacts with the material. They are not highly volatile, since volatility involves turning into a vapor, and granules remain as solids rather than evaporating. They also don’t require heat to activate; many are moisture-activated or rely on soil moisture to release the active ingredient, rather than heat.