>>13626543Depends on operational loading of the reactor (it's safe enough to say that you wouldn't want to be near it in operation, and it's safe to be around after operations)The question I think you're really trying to get at is: Does anything that would make the primary coolant water dangerous for a long period of time(greater than a few seconds or minutes) come from the fuel, loaded poisons, or fission byproducts located in the core.
The answer is possibly. Normally, you'll have cladding associated with your fuel keeping it isolated from the water cooling it (fuel -> cladding -> corrosion layers -> water) which means your water is generally what ever you put in the system plus what ever chemicals you added to maintain chemistry of the system to minimize pipe corrosion. That being said, if you have a fuel element failure (could a very minor breech of the cladding from swelling of the fuel element in over temperature conditions) you would indeed have fission products possibly floating around your coolant and depositing on surfaces raising your over all rad levels associated with the system.
Note that while in operation, BWRs typically secure personnel access to their turbines because they don't have a secondary water system/steam generators(unlike a PWR the prior anon was talking about). The Reactor vessel itself is a steam generator.
