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| Underground car parks and fire:
Switzerland probably has more underground car parks per car than most countries, but what this with smoking in them? The times I've seen people smoking in our local Coop and Migros car parks - the Coop even has an ash tray by the lift as the building is now non-smoking. Except the car park.
Doesn't Swiss petrol explode at all then?? | |
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Hi AbFab,
Smoking in underground car parks is normally verboten (there's a sign at the entrance), but not because of petrol fumes, which is lighter than air and escapes, but because of LPG (heavier than air) which settles in the lowest deck.
Bigger car parks at malls, because of the constant coming and going, have mandatory forced ventilation for the exhaust fumes more than petrol/gas fumes. People would succumb far faster from carbon monoxide poisoning and those with respiratory problems would be retching on the floor from exhaust fumes long before petrol fumes would build up to dangerous levels.
Still, they shouldna smoke in there, period.
