Question 3217Deck General70% to pass
What is the minimum concentration of H2S that will cause death with short-term exposure?
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.
Related Questions
#3215 For H2S detection, sensitized tapes indicate H2S presence by means of discoloration of an exposed spot on the tape. The shade of the color on the spot depends upon the concentration of H2S and which of the following factors? #3216 What additional precautions should be taken when making temporary repairs to a MODU that is operating when hydrogen sulfide is present? #3218 What is the maximum concentration of H2S to which workers may be regularly exposed without adverse effects? #3219 What is the minimum concentration of H2S which can cause death if a person is exposed for even an instant? #3220 Which of the following conditions would be the worst for the dispersion of H2S?