I was a little taken back to learn crews smoked on subs; in a recycled air environment, I assumed smoking would not be allowed. Do they have designated smoking areas on subs? Any estimates on the average percentage of a crew on a sub that smoke?
TT, that question is very dynamic. But, under most (of my observed sub' time) it wouldn't be over 30 to 40 (%) percent of the crew. The Navy did provide "free" classes on stopping smoking. And, you guessed it most relapsed on patrol.
Yes, we designate smoking areas on the boat. Unfortunately it tends to be in places, IMO, that are the most dangerous. Like for example, next to the O
2 generator and diesel in Aux. Machinery or in Shaft Alley next to the O
2 outlets.
As to the recycled environment, we have lots of "other" things we put in the air that are equally harmful but, in reality, are just part of doing business.
This really isn't probably an accurate perspective for all boats. Just mine.