Which of the Following Is the Most Toxic Based on These

question 84

Multiple Choice

Which of the following is the most toxic based on these oral rat LD₅₀ values?

• A) lead, 20 mg / kg body weight
• B) aspirin, 1750 mg / kg body weight
• C) ethanol, 1000 mg / kg body weight
• D) nicotine, 2 mg / kg body weight

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Definitions:

Gamma Rays

Electromagnetic radiation of the highest frequency and energy, emitted from atomic nuclei during radioactive decay.

Background Radiation

The ionizing radiation present in the environment naturally from cosmic rays, radon gas, and other sources not due to deliberate human activity.

Radon

A radioactive, colorless, odorless noble gas occurring naturally as the decay product of uranium, posing health risks due to its ionizing radiation.

Background Radiation

The ubiquitous ionizing radiation present in the environment, originating from natural and artificial sources like cosmic rays, radon gas, and medical x-rays.