When levels of hexavalent chromium cannot be reduced below 2.5 micrograms per cubic meter of air averaged over an 8-hour work shift, your employer will establish a program of exposure assessments. This 2.5 microgram per cubic meter measurement is known as the action level. Exposure assessments use air sampling and measurements to determine an employee’s exposure to chromium 6. The purpose of the exposure assessment is to ensure that employee exposure levels do not exceed the permissible exposure limit. When changes occur in the workplace that may affect exposure levels, such as the introduction of new materials, additional exposure assessments will be performed. Notification of air monitoring results must be available. If air monitoring shows chrome 6 levels in the air exceed the PEL we must:
Notify you within 5 days in construction or within 15 days in general industry. Describe to you in writing what corrective actions we will take to reduce your exposure below the PEL.