Action level for lead is how many micrograms per cubic meter?

Action level for lead is how many micrograms per cubic meter?

• A. 30
• B. 15
• C. 60
• D. 90

Answer: (A)

Action level is the workplace exposure threshold that triggers required protective programs and monitoring before reaching the formal exposure limit. For lead, that threshold is 30 micrograms per cubic meter of air, averaged over an 8-hour shift. When exposure reaches or exceeds this level, employers must implement monitoring, medical surveillance for affected workers, training, and controls to reduce exposure. This value is below the permissible exposure limit, which is 50 micrograms per cubic meter, so staying at or above the action level prompts protective measures, while exceeding the limit requires even stronger corrective actions. The other numbers don’t fit: 15 is below the threshold and wouldn’t trigger the action-level requirements, while 60 and 90 are above the limit and indicate violations needing immediate action rather than just meeting the action-level criteria.

Action level is the workplace exposure threshold that triggers required protective programs and monitoring before reaching the formal exposure limit. For lead, that threshold is 30 micrograms per cubic meter of air, averaged over an 8-hour shift. When exposure reaches or exceeds this level, employers must implement monitoring, medical surveillance for affected workers, training, and controls to reduce exposure. This value is below the permissible exposure limit, which is 50 micrograms per cubic meter, so staying at or above the action level prompts protective measures, while exceeding the limit requires even stronger corrective actions. The other numbers don’t fit: 15 is below the threshold and wouldn’t trigger the action-level requirements, while 60 and 90 are above the limit and indicate violations needing immediate action rather than just meeting the action-level criteria.