What is the primary means of human exposure to insecticides?

Inhalation is recognized as the primary means of human exposure to insecticides for several reasons. When insecticides are applied, especially in aerosol form, they can easily become airborne, allowing them to be inhaled into the respiratory system. This exposure route is particularly concerning in enclosed spaces where ventilation is limited, and the concentration of airborne insecticides can be higher.

Additionally, inhaling insecticides can lead to direct exposure of the lungs to the chemicals, potentially resulting in acute and chronic health effects depending on the toxicity of the substances and the duration and level of exposure. While ingestion, skin absorption, and eye contact also pose exposure risks, inhalation is often emphasized as the most immediate and significant pathway for many insecticides, highlighting the importance of proper application techniques and personal protective equipment for pest control workers and others in treated environments.