Help needed! Have you ever experienced nitrogen narcosis while doing a recreational dive?
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Wiznutaggie
Contributor
Right around 120' while spearfishing offshore
sometimes... have had it at 110, 125, 130 (cold, dark, green water is a joy).
undrwater
Contributor
As shallow as 75' in low vis SoCal waters.
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SlugLife
Contributor
Yes, 130ft. I don't know what depth it started or ended. "Task loading" became noticeably more difficult, but otherwise nothing too crazy happened.
I don't know how useful this data would be from an actual scientific perspective. Math (which I do have a background in) is very different from statistics, which is also different from effective surveys. There are many factors which can cause surveys to become heavily skewed, including where you sample the data from, and the phrasing of the question asked.
edit: I'll leave my reply up. However, I do agree it's a little unusual that OP is creating these threads, but not participating on scuba-board.
I don't know how useful this data would be from an actual scientific perspective. Math (which I do have a background in) is very different from statistics, which is also different from effective surveys. There are many factors which can cause surveys to become heavily skewed, including where you sample the data from, and the phrasing of the question asked.
edit: I'll leave my reply up. However, I do agree it's a little unusual that OP is creating these threads, but not participating on scuba-board.
Not until 180 ft.
L13
Contributor
I have experienced some effect as shallow as 100' (once), mostly perceptual narrowing and perceived task loading. On most dives beyond 115' I have experience some level of these effects, usually mild. Only once, at 108', was it unmanageable enough that I called the dive. On my deepest dive (128') the effect was minimal.
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