Which factor increases the likelihood of pesticide risk to humans?

Improper application significantly increases the likelihood of pesticide risk to humans because it can lead to unintended exposure, higher concentrations of the pesticide in the environment, and a greater chance of drift to non-target areas, including residential spaces. When pesticides are not applied according to label instructions — in terms of dosage, timing, or technique — it can result in contamination of air, water, and surfaces that humans may come into contact with.

For instance, applying a pesticide on a windy day can cause it to drift into adjacent areas, where people or pets may be exposed. Similarly, applying more pesticide than recommended can lead to higher residue levels in the environment, increasing the potential for human exposure. These risks are compounded in settings where vulnerable populations, such as children or the elderly, are present.

While safety gear and strict adherence to manufacturer’s instructions help minimize risk, the factor that fundamentally impacts the safety and efficacy of pesticide use is how the pesticide is applied. Proper training and awareness of application protocols are vital to reducing hazards associated with pesticide use to humans.