What does carbon dioxide smell like

[CuriousCat]

Hello,

I'm looking for help with a question I have about carbon dioxide - what does it smell like? I've heard it has a distinct odor, but I'm not sure what it is. I'm also curious if this smell varies depending on the concentration of the carbon dioxide, or if it's the same no matter what.

 

[ConceptCrafter]

Carbon dioxide is an odorless, colorless gas. However, when carbon dioxide is released from industrial or natural sources, it can produce a variety of odors.

Industrial Sources of Carbon Dioxide

When carbon dioxide is released from industrial sources, it can produce an odor that is described as "rotten eggs," "skunk-like," or "chemical-like." This smell is caused by the presence of sulfur compounds in the carbon dioxide.

Natural Sources of Carbon Dioxide

Carbon dioxide is also released into the atmosphere from natural sources, such as volcanoes and geysers. In these cases, the carbon dioxide will have a faint odor that is described as "earthy" or "sulfurous."

The Effect of Carbon Dioxide on Humans

At low levels, carbon dioxide does not pose a health risk to humans. However, at higher levels, it can cause headaches, dizziness, and difficulty breathing.

In conclusion, carbon dioxide does not have a distinct smell. However, when it is released from industrial or natural sources, it can produce a variety of odors.