Assertion: hydrogen | /r/Desires | concentration
Facets:
value: according to lovins
type: OTHER
value: in the air
type: LOCATION
value: for ignition
type: PURPOSE
Source sentences:
text: It does require a concentrations in the air four times higher than gasoline vapor for ignition, however, making hydrogen as fuel a danger similar to any flammable fuel in use today, according to Lovins 2.