Which factor is NOT included in the calculation of risk involving pesticides?

In assessing the risk associated with pesticide use, several key factors are typically considered, namely exposure, toxicity, and environmental conditions. Each of these plays a significant role in determining the overall risk posed by a pesticide.

Exposure refers to the likelihood and extent to which individuals, wildlife, or the environment might come into contact with the pesticide. This includes aspects such as application methods, the amount of pesticide used, and the duration of exposure.

Toxicity describes the inherent harmful effects of the pesticide on living organisms. This is measured based on the concentration and the dose-response relationship, indicating how poisonous a substance can be to various species.

Environmental conditions involve factors like temperature, humidity, and the nature of the habitat where the pesticide is applied. These conditions can influence how the pesticide behaves in the environment, including its degradation and movement through soil or water.

In contrast, legislation does not directly influence the scientific assessment of risk but rather governs how pesticides are regulated and managed. While legislation can affect how and when pesticides are used, it does not factor into the biological or environmental calculations of risk concerning the direct effects of a pesticide. This distinction makes it clear why legislation is not included in the calculation of risk involving pesticides.