Assertion: carbon monoxide | /r/Causes | harm
Facets:
value: in lower air concentrations
type: LOCATION
Source sentences:
text: One of the ways that carbon monoxide causes harm is by combining with a protein called haemoglobin in red blood cells to form carboxyhaemoglobin.
text: Both of these gases can be dangerous but CO is considered to be the bigger villain because it can cause harm in lower air concentrations, and because it actually latches on to your cells.
text: Another common misconception is that you will smell it before it causes harm.