Carbon monoxide (CO) is a dangerous toxic gas and poisonous element. Because it can be released through various anthropogenic sources but CO can exist in the natural environment as well.
CO released from volcanic activities
CO emitted from burning vegetation
Natural gases released from coal mines
Commercial vehicles, airplanes, tractors, trucks, and automobiles
Industries working at high temperatures and using carbon compounds as raw products
Metal production and processing facilities
Power generation and distribution
Cigarette and tobacco combustion
Waste incineration and burning
Fossil fuel power generation
Extraction of gas from sea oil and land
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| Govt. Body | Breakpoints |
|---|---|
| India | 0.0-27 → Good |
| EPA | 0.0-44 → Good |
| Organization | Standards |
|---|---|
| California | 8hrs - 9 PPM |
| AAQS | 1 hour - 20 PPM |
| WHO | 24hrs - 3.5 PPM |