【摘要】

Alberta’s Occupational Exposure Limits (OELs) for airborne substances (vapours, gases, fumes, dusts and fibres) are contained in Part 4 of the Occupational Health and Safety Code. Employers are required to ensure that a worker’s exposure to any substance is kept as low as reasonably achievable/practicable and does not exceed the substance’s OEL. Since many factors affect total exposure, it is important to be aware of and consider the impact of these factors to prevent overexposure......