[saalweachter]

The process for releasing typically dilutes to a standard level before releasing into the ocean/ other water way. So when it's released, it's already at a level you could swim in (drink?), there's no process for it accumulating into a more concentrated form in the ocean, and it has a half-life of 12 years.

[contravariant]

Ah I see I may have misinterpreted the comment. I took it to mean it should somehow fit in a regular size swimming pool.

As far as I can figure out it probably does not.