eli5: Why is there a -no mobile phone- sign at gas stations?

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There are always signs that show the ban of cigarettes, matches and phones at gas stations. I can imagine fire being dangerous around gas, but you can’t possibly blow up a gas station with a mobile phone, can you?

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Anonymous 0 Comments

It’s from the incorrect belief using a mobile could cause a spark which would ignite petrol vapours. Some tv show or other did a pretty comprehensive rebuttal of it about 10 years ago if I remember correctly by filling a caravan with petrol vapour, a load of mobiles, and calling them all simultaneously to see if it exploded. It didn’t.

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