Toxicity Classification
LD50 (rat,oral)
Correlation to Ingestion by 150-lb
Adult Human
Toxicity
<1 mg/kg
a taste to a drop
extreme
1–50 mg/kg
to a teaspoon
high
50–500 mg/kg
to an ounce
moderate
500–5,000 mg/kg
to a pint
slight
5–15 g/kg
to a quart
practically nontoxic
Over 15 g/kg
more than 1 quart
relatively harmless
Type of Poison
Caustic poison (lye)
Symptom/Evidence
Characteristic burns around the lips and mouth of victim
Carbon monoxide
Red or pink patches on the chest and thigh, unusually bright red
lividity
Sulfuric acid
Black vomit
Hydrochloric acid
Greenish-brown vomit
Nitric acid
Yellow vomit
Phosphorus
Coffee-brown vomit, onion or garlic odor
Cyanide
Burnt almond odor
Arsenic, mercury
Extreme diarrhea
Methyl (wood) or
isopropyl (rubbing)
alcohol
Nausea and vomiting, unconsciousness possibly blindness
Use the tables to answer the following questions.
1. What type of poison has a burnt almond odor?
2. What type of toxin causes yellow vomit?
3. What type of toxin causes black vomit?
4. What type of toxin causes red or pink patches on the chest?
5. What type of toxin causes burns around lips or mouth?
6. What type of toxin causes onion garlic odor?
300 lb. 150 lb.
Man
man
If the toxin is extreme how much would
be needed for a lethal dose?
If the toxin was Moderate how much
would be needed for a lethal dose?
If the toxin was high how much would
be needed for a lethal dose?
If the toxin what slightly toxic how much
would be needed for a lethal dose?
75 lb.
boy