What Are the Challenges in Using Physiological Markers?
Despite their usefulness, there are challenges associated with using physiological markers:
Variability: Physiological markers can vary widely between individuals due to genetic differences, age, sex, and environmental factors. Specificity: Some markers may not be specific to a particular toxicant, making it difficult to pinpoint the cause of observed changes. Sensitivity: Not all markers are sensitive enough to detect low levels of exposure.
These challenges necessitate the use of a combination of markers and methods to obtain accurate assessments.