What Does WLM Stand For?

WLM stands for Working Level Month For Radiation Exposure

WLM, or Working Level Month for Radiation Exposure, is a unit of measurement used to quantify an individual's exposure to radon decay products in occupational settings. One WLM is defined as the exposure to one working level (WL) of radon progeny for a period of one month. This metric is essential for assessing the potential health risks associated with long-term radon exposure, particularly in mining and other industries where radon gas is prevalent. By monitoring WLM, organizations can implement safety measures to protect workers from radiation-related health issues.