Yes; if it's a gas leak (which is questionable at this point, given that the gas company in NYC don't show any problems with their system) then an electrical spark could lead to a fire.
If the system in New Jersey is leaking and the smell wafting over NYC, then people in NYC are not in danger of touching a light switch.
all the anchors are filling air time talking about NOTHING
Per 1010WINS: NYPD says air quality tested and is fine, albeit stinky.
Explosive danger depends on concentration of leaking gas (chemical?).
Anyone have L.E.L. meter handy?