What term describes the probability that injury or detrimental effects will result if a substance is not used properly?

The term that describes the probability that injury or detrimental effects will result if a substance is not used properly is "hazard." In the context of pest management, a hazard refers to the intrinsic properties of a substance that have the potential to cause harm. This includes the understanding that a particular chemical or substance can be dangerous under certain conditions, particularly when not applied according to guidelines or instructions.

In contrast, risk involves the likelihood and consequences of harm occurring, taking into account the exposure to a hazard. Exposure refers to the actual contact or presence of a person or environment with a hazardous substance. While threat could imply a broader potential for harm, it doesn't specifically relate to the properties of the substance itself or its usage. Thus, defining the term in this context as "hazard" clarifies the specific risk associated with improper use of a substance, focusing on its potential dangers.