In the event of an emergency, toxicologists are called upon to provide expert advice and analysis. They begin by identifying the nature of the toxic substance and its potential routes of exposure, such as inhalation, ingestion, or skin contact. Toxicologists then evaluate the concentration levels and potential health effects, using toxicological databases and models to predict outcomes. This information is crucial for emergency responders to make informed decisions and implement appropriate containment and decontamination measures.