this post was submitted on 20 Aug 2025
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[–] ms_lane@lemmy.world 38 points 2 months ago (3 children)

For reference- she was at 0.091% BAC

England has a driving limit of 0.08%

[–] yetAnotherUser@discuss.tchncs.de 29 points 2 months ago (3 children)

For those confused: Americans use percentage for blood alcohol concentration.

That's 0.91‰ and 0.8‰ respectively.

[–] floquant@lemmy.dbzer0.com 25 points 2 months ago

% is percent, ‰ is per mille (thousand)

[–] marsza@lemmy.cafe 4 points 2 months ago (2 children)
[–] yetAnotherUser@discuss.tchncs.de 10 points 2 months ago (2 children)

Like floquant said, many European countries use per mille (which is denoted by ‰). It's easy to convert those two but you first have to realize the need for conversion if you don't read carefully (since the symbols % and ‰ look similar at first glance).

[–] Acidbath@lemmy.world 6 points 2 months ago

holy shit 0_o as an American, I have never seen this symbol in my life.

[–] marsza@lemmy.cafe -2 points 2 months ago (4 children)

But they still mean percent yeah?

[–] Revan343@lemmy.ca 4 points 2 months ago (1 children)

No, per mille does not mean per cent. 1000 does not equal 100.

[–] marsza@lemmy.cafe -2 points 2 months ago (1 children)

So they measure bac by the mile? This does not make sense.

[–] itslilith@lemmy.blahaj.zone 7 points 2 months ago

mille, not mile. mille means thousand, so "per mille" means "per thousand", just as "per cent" means "per hundred". so 10‰ is 1%

[–] floquant@lemmy.dbzer0.com 3 points 2 months ago* (last edited 2 months ago) (1 children)

They are similar in the same way as millimeters and centimeters, hectograms and kilograms, etc. One is 10 times smaller than the other, so they represent the same unit at different scales. The name "per cent(o)" means 1 in 100, while "per mille" means 1 in 1000

[–] marsza@lemmy.cafe -3 points 2 months ago

Blood alcohol level.

[–] Capricorn_Geriatric@lemmy.world 2 points 2 months ago (1 children)

Per cent is per hundered (1/100). The sign is %.

Per mille is per thousand (1/1000). The sign is ‰.

It's basically used to say 0.1% as 1‰ without using decimals because fuck them.

On another note, the symbols used are ingenious. The diagonal line represents "1", and the number of o's is the same as in the number (two for hundered and three for thousand)

[–] Modern_medicine_isnt@lemmy.world 1 points 2 months ago

I read it as per mile first. I was soo confused. Lol

[–] yetAnotherUser@discuss.tchncs.de 2 points 2 months ago (2 children)

Yeah, it's the same unit just offset by a factor of ten:
% = 10 * ‰

[–] marsza@lemmy.cafe 3 points 2 months ago

Oh, I see. Yes this makes sense thank you

[–] SpongyAneurysm@feddit.org 3 points 2 months ago

Strictly speaking, they're not even units. Just shorthand for a factor.

[–] couldhavebeenyou@lemmy.zip 2 points 2 months ago (1 children)

Can attend the flight / can not attend the flight

[–] marsza@lemmy.cafe 1 points 2 months ago
[–] andrewta@lemmy.world 3 points 2 months ago
[–] obinice@lemmy.world 10 points 2 months ago (1 children)

What's the limit at her company for her job, though? I'm assuming that's the limit we're discussing here, unless she was trying to drive the plane.

[–] CmdrShepard49@sh.itjust.works 14 points 2 months ago

0.02% according to the article.

[–] Limonene@lemmy.world 2 points 2 months ago

Why is the driving limit 4 times higher than the limit for acting as a flight attendant?