What is OSHA's Permissible Exposure Limit (PEL) for lead?

Prepare for the Pennsylvania Lead Inspector Test. Study with flashcards and multiple choice questions, each question offers hints and explanations. Get ready to pass your exam!

Multiple Choice

What is OSHA's Permissible Exposure Limit (PEL) for lead?

OSHA defines how much lead workers can be exposed to in the air over an 8-hour workday, expressed as an average concentration. For lead, that permissible exposure limit is 50 micrograms of lead per cubic meter of air (50 μg/m3). In practice, this means the air in the worker’s breathing zone should not exceed that level on average over a full shift. The number 50 is the correct magnitude, and the other values do not match OSHA’s published limit. Note the question’s units use μg/mL, which are typical for liquids, whereas this standard is in μg/m3 for air; the key point is the value 50.

OSHA defines how much lead workers can be exposed to in the air over an 8-hour workday, expressed as an average concentration. For lead, that permissible exposure limit is 50 micrograms of lead per cubic meter of air (50 μg/m3). In practice, this means the air in the worker’s breathing zone should not exceed that level on average over a full shift. The number 50 is the correct magnitude, and the other values do not match OSHA’s published limit. Note the question’s units use μg/mL, which are typical for liquids, whereas this standard is in μg/m3 for air; the key point is the value 50.

More practice questions