Question

The maximum OSHA permissible exposure limit (PEL) for carbon monoxide is ____ parts per million (ppm) of air for an 8-hour period.

Option 1. 20
Option 2. 30
Option 3. 40
Option 4. 50

Answer 1

The maximum OSHA permissible exposure limit (PEL) for carbon monoxide is 50 parts per million (ppm) of air for an 8-hour period. At extremely high levels, carbon monoxide can cause death.

Step-by-step explanation:

The maximum OSHA permissible exposure limit (PEL) for carbon monoxide is 50 parts per million (ppm) of air for an 8-hour period.

Carbon monoxide (CO) is a colorless, odorless gas that can cause harmful health effects by reducing oxygen delivery to the body's organs and tissues. At extremely high levels, CO can cause death. Average levels in homes without gas stoves vary from 0.5 to 5 ppm, while levels near properly adjusted gas stoves can range from 5 to 15 ppm, and those near poorly adjusted stoves may reach 30 ppm or higher.