Why is it essential to consider the frequency of exposure in exposure assessments?

Considering the frequency of exposure is crucial in exposure assessments because it directly influences the overall risk of adverse health effects associated with those exposures. Frequent exposure to harmful substances or conditions increases the likelihood of health issues manifesting, as the cumulative effect of exposure can accumulate over time. For example, individuals exposed to a hazardous environment several times a day may develop health problems more readily than those exposed infrequently.

Understanding frequency helps assess not just the immediate effects but also long-term health outcomes. By quantifying how often a person is exposed, practitioners can better estimate the dose received over time and identify potential patterns of adverse effects. This assessment facilitates more accurate risk evaluations and allows the development of appropriate intervention strategies to mitigate risks.