APES Toxicology

measured as mg per kg of body weight

• LD₅₀

• LC₅₀

• LR₅₀

• LM₅₀

LD₅₀ measures

• the amount that will make you sick half the time

• the lethal dose for 50% of a test population

• the quantity of toxin needed to infect 50% of your cells

• the amount that wil kill you half the time

Cyanide, heroin, and nicotine are concidered extreamly toxic, meaning their LD₅₀ is in this range.

• Less than 5 mg/kg of body weight

• 5 to 50 mg/kg of body weight

• 50 to 500 mg/kg of body weight

• 500 to 1000 mg/kg of body weight

Lethal concentration that will kill 50% of a test population

• LD₅₀

• LC₅₀

• LR₅₀

• LM₅₀

LC₅₀ is used primarily for

• medicine

• poisons

• air pollution

• aquatic systems

How much is one ppm?

• 1 mg/kg of body mass

• 1 g/l

• 1 mg/l

• 1 μl/l

I eat a mushroom and I die. What is the type of toxicity?

• Acute

• Chronic

• A cute

I am exposed to radiation as a child. Ten years later I die from it. What is the type of toxicity?

• Acute

• Chronic

• A cute

Tags

NGSS.HS-PS4-4

I ingest lead with every glass of water I drink. What is the type of toxicity?

• Acute

• Chronic

• A cute

Several chemicals in sub-toxic amounts when mixed together become toxic.

• Threshold of Toxicity

• Bioaccumulation

• Toxic Synergy

• Biomagnification