Which of the following can be a route of exposure for pesticide fumes?

Inhalation is a primary route of exposure for pesticide fumes because these substances can easily become volatile and enter the air as gases or aerosols. When pesticides are applied, they may evaporate or become airborne, leading to the potential for inhalation by individuals nearby. This is particularly relevant in the case of agricultural applications or indoor pest control where a person may be in close proximity to the treated area.

While ingestion, which involves taking in the substance through eating or drinking, and skin contact, where the pesticide can absorb through the skin, are also critical routes of exposure in pesticide safety, the specific focus here is on fumes. Pesticide fumes can effectively travel through the air and be inhaled before they can even reach surfaces to be ingested or come into contact with skin. This highlights the importance of ventilation and proper protective measures when handling pesticides to minimize the risks associated with inhaling harmful substances.