Workplace exposure limits (WELs)

Workplace Exposure Limits (WELs) are the maximum amount of a hazardous substance, like chemicals or dust, that workers can be exposed to safely over a specified period, typically an 8-hour workday. They are designed to protect health by preventing harmful effects from long-term exposure. WELs are established based on scientific research and are used by employers to ensure workplace safety, often through ventilation, protective equipment, or process controls. If exposures stay below these limits, workers are less likely to experience health problems related to that substance.