Question 3217 Deck General

70% to pass

What is the minimum concentration of H2S that will cause death with short-term exposure?

A 100 ppm
B 200 ppm
C 400 ppm
D 700 ppm
AI Explanation

The correct answer is D) 700 ppm. The short-term lethal concentration of hydrogen sulfide (H2S) is considered to be around 700 ppm. Exposure to concentrations above this level can cause rapid unconsciousness and death within minutes. The other answer choices are incorrect as they represent lower concentrations that, while potentially hazardous, are not considered immediately fatal with short-term exposure.

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