Which pair correctly matches a hazard term with its meaning?

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Prepare for the Alabama Fire College HAZMAT Technician Test with flashcards and multiple choice questions. Each question includes hints and detailed explanations. Ensure your readiness for the exam!

Multiple Choice

Which pair correctly matches a hazard term with its meaning?

Explanation:
One key toxicology term is LD50, which represents the amount of a substance required to cause death in 50% of a test population and is expressed as a dose (typically milligrams per kilogram of body weight). This is precisely what the option states: Lethal Dose 50% fatal. The other terms use different concepts—LC50 refers to the lethal concentration in air that kills 50% of the population (not a dose per body weight), and TLV stands for Threshold Limit Value, a guideline for occupational exposure rather than a measure of lethality.

One key toxicology term is LD50, which represents the amount of a substance required to cause death in 50% of a test population and is expressed as a dose (typically milligrams per kilogram of body weight). This is precisely what the option states: Lethal Dose 50% fatal. The other terms use different concepts—LC50 refers to the lethal concentration in air that kills 50% of the population (not a dose per body weight), and TLV stands for Threshold Limit Value, a guideline for occupational exposure rather than a measure of lethality.

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