Assertion: carbon monoxide's effect | /r/HasProperty | cumulative
Facets:
value: at altitude
type: OTHER
Source sentences:
text: That is to say, the effects are cumulative (which is what makes it so deadly).
text: (At altitude, the effects of CO poisoning and altitude hypoxia are cumulative.)
text: CO that drifts in and out of a cabin can be dangerous, since the effects of CO are cumulative and can build up gradually in a person's bloodstream over hours or even days before it reaches critical levels.