I want to know the answer to the following question:
What is the nationally set limit for exposure of asphalt in a 15 minute period?
All the background I'm provided with is that "The National Institute for Occupational Safety and Health (NIOSH) has set a Recommended exposure limit (REL) of 5 mg/m3 over a 15-minute period.". Is that enough to answer the question?
Answer: yes