Carbon monoxide has almost the same energy density as hydrogen, so were is the fuss about the dangers of carbon monoxide ?
Yes, carbon monoxide is also a combustible.
Humans produce hydrogen as a digestion byproduct every day.
Hydrogen is actually safer in a vehicle than gasoline or LNG, or propane since hydrogen disapates much faster than all of those other fules and does not cling or rather stay on the ground pooling.
There is much hype about what happen to the Hindenburg which is not true.
It was the very flamable paints that they used on the out side of the Hindenburg that caused the initial flames.
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But isn’t it bad if it disperses quickly? It means that more H is in proximity to O2 if and when it ignites.
The grain silo problem.
Whereas a liquid is not completely atomized. Actually gasoline has to be atomized before it will ignite properly - a carb or fuel injector.
Flammable paints, a supposed leaking fuel cell , lighting from a thunder storm and 1930s technology sounds like the perfect storm to me.