What is the STEL for monitoring formaldehyde exposure?

The Short-Term Exposure Limit (STEL) for monitoring formaldehyde exposure is set at 15 minutes. This standard is established to protect workers from potential adverse health effects that can occur with short-duration exposures to hazardous substances.

Formaldehyde is known to cause irritation of the eyes, skin, and respiratory tract, as well as other more serious health concerns with prolonged exposure. The STEL is a critical measure that allows for brief periods of higher exposure without causing significant harm, as long as the average exposure over time remains within safe limits.

In practical terms, when monitoring formaldehyde, the 15-minute time frame provides a balance between protecting health and allowing for operational flexibility in environments where formaldehyde is used or produced. This is why 15 minutes is designated as the STEL for this substance, helping to ensure that workers are not exposed to harmful levels during short work tasks that may involve higher concentrations of formaldehyde.