Georgia Pesticide Applicators Practice Exam

The hazard of a pesticide is determined by which two factors?

1. Active ingredient and packaging

2. Application method and timing

3. Toxicity and exposure

4. Environmental conditions and concentration

The correct answer is: Toxicity and exposure

The hazard of a pesticide is fundamentally determined by both its toxicity and the potential for human or environmental exposure. Toxicity refers to the inherent qualities of the pesticide that can cause harm, which is often measured using various metrics such as LD50 (the lethal dose required to kill 50% of a test population). The higher the toxicity, the greater the risk it presents. Exposure, on the other hand, relates to the likelihood that individuals (including humans, animals, and non-target organisms) will come into contact with the pesticide. This can be influenced by factors such as the method of application, frequency, and duration of exposure, as well as environmental conditions that can affect the pesticide's dispersal and breakdown. By focusing on both toxicity and exposure, it becomes possible to assess the actual risk and hazard associated with using a pesticide in a specific situation. Understanding this relationship is crucial for making informed decisions about pesticide use, ensuring safety for applicators and the environment.