LD50
Definition
LD50 stands for "lethal dose 50" and refers to the amount of a substance that is estimated to be lethal to 50% of the test population. It is commonly used in toxicology studies to determine the toxicity level of a substance.
Related terms
Dose-response studies: These studies examine the relationship between the dose (amount) of a substance given and its effect on an organism. They help determine how different doses affect individuals or populations.
Median lethal dose: Similar to LD50, this term refers specifically to the dose at which 50% of test subjects die. It is often used interchangeably with LD50 in toxicology research.
Toxicity: This term describes the degree or extent to which a substance can harm living organisms. It considers both the concentration and exposure time, helping us understand how dangerous a substance may be.
"LD50" appears in:
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Practice Questions (12)
What is the significance of LD50 values?
How are LD50 values useful in determining safe exposure levels for humans?
What is the significance of studying LD50 values?
Who introduced the concept of LD50?
How do LD50 values contribute to decision-making?
What is the primary purpose of studying LD50 values?
Which LD50 information is most important for occupational health and safety purposes?
Can animal LD50 data be directly applied to humans?
How should an LD50 value be used?
Are LD50 values always applicable or reliable indicators of toxicity?
What does LD50 stand for?
What can LD50 values be used for?
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