What term describes the potential for pesticide injury based on toxicity and likelihood of significant exposure?

The term that accurately describes the potential for pesticide injury based on both toxicity and the likelihood of significant exposure is "risk." In the context of pesticides, risk takes into account not only how harmful a substance can be if exposure occurs (toxicity) but also how likely it is that individuals, non-target organisms, or the environment will be exposed to that substance.

In evaluating pesticide risk, it's critical to consider the exposure scenario. For instance, a highly toxic pesticide may not pose a significant risk if it is used in a manner that limits exposure, whereas a less toxic pesticide could carry a higher risk if its use results in widespread exposure. Therefore, understanding both the toxicity of the pesticide and the potential for exposure is essential for assessing the overall risk to health and the environment.

While "hazard" relates to the inherent ability of a substance to cause harm (the toxicity aspect alone), it does not encompass the likelihood of exposure, which is vital for a comprehensive risk assessment. "Danger" often conveys a sense of immediate threat and is less technical, while "threat" typically refers to potential future harm that may not be directly linked to specific exposure and toxicity assessments. Hence, "risk" serves as the most fitting and comprehensive term in this context.