Question

A 10-minute exposure to ____________ of carbon monoxide would be hazardous and possibly incapacitating to occupants of a building.

A) 35 parts per million (ppm)
B) 350 ppm
C) 3,500 ppm
D) None of the above

Answer 1

A 10-minute exposure to 350 ppm of carbon monoxide is hazardous and could incapacitate individuals, making option B the correct answer.

Step-by-step explanation:

Exposure to carbon monoxide (CO) at certain levels can be hazardous to health. Generally, average levels in homes without gas stoves range from 0.5 to 5 parts per million (ppm).

Higher concentrations, such as those near poorly adjusted gas stoves, can reach or exceed 30 ppm. With that in mind, a 10-minute exposure to 350 ppm of carbon monoxide is considered to be hazardous and could incapacitate the occupants of a building.

Therefore, the correct answer to the question is B) 350 ppm.