What is the duration for conducting a Short-Term Exposure Limit (STEL) assessment?

A Short-Term Exposure Limit (STEL) assessment is designed to measure the exposure of an individual to a hazardous substance over a short duration. The duration for this assessment is typically set at 15 minutes. This specific timeframe allows for the evaluation of potential immediate health effects that could arise from short-term exposure to high concentrations of hazardous substances.

Monitoring during this 15-minute interval is crucial for protecting workers, as it helps to ensure that any acute adverse effects from exposure do not exceed permissible limits. By adhering to this standard duration, health and safety professionals can effectively evaluate and manage the risk associated with short-term exposure in various work environments.