6 ms·
Got the symptoms wrong, but oxygen toxicity is also present from 25 meters down.
by cess11 1y ago
Got the symptoms wrong, but oxygen toxicity is also present from 25 meters down.
- hermitcrab 1y agoHave you got a reference for that?
- cess11 1y agoE.g. https://dan.org/health-medicine/health-resources/diseases-conditions/oxygen-toxicity/ https://dan.org/health-medicine/health-resources/diseases-co....
- hermitcrab 1y agoI don't see any thing that supports "when diving with compressed air most people get woozy and otherwise intoxicated from oxygen around 30 meters from the surface".
- hermitcrab 1y agoIt does say: "Be aware that oxygen toxicity is unpredictable. Divers have experienced convulsions at shallow depths under conditions where most experts would not have expected them to occur." But that doesn't say what depth, what oxygen % and how often it happens.
- bonzini 1y agoIt also says that oxygen toxicity is a possibility only above 21% oxygen. In fact, with regular air there are way too many things that have already gone wrong if you are at 65 m depth (or even 50 m). It's clear from reading the document that convulsions at "shallow depths" refers to the case of breathing 100% oxygen, where 1.5 m difference is the difference between <1.6 bar (safe) and >1.7 bar (absolutely not safe).
- bonzini 1y agoNot with 21% oxygen. 25 meters is 3.5*0.21=0.73 bar of O2 partial pressure, which is within even the strictest limits that apply to rebreathers (1.3 bar). If you're breathing 100% oxygen for decompression, that's a completely different story and not something a recreational divers will do.