What does the term "exposure limit" mean?

The term "exposure limit" refers to the maximum permissible concentration of a hazardous substance in the workplace or environment to which a person can be exposed without experiencing adverse health effects. It is established based on scientific research and is intended to protect workers from potential harm due to long-term or short-term exposure to toxic substances.

Option B correctly reflects this definition, as it denotes a safe threshold for exposure. Exposure limits are often regulatory standards that guide industries in managing health risks related to hazardous substances, ensuring that levels remain within a range considered safe for human health.

Other options do not capture the essence of exposure limits accurately. The minimum concentration of a toxic substance, the average concentration deemed safe for daily exposure, and the threshold for acceptable waste disposal do not specifically relate to the defined maximum limit for hazardous exposure that is critical for worker safety and health.