How can an ocean get contaminated with nuclear radiation?

Answer 1

That's not possible. There's no such thing as contamination from nuclear radiation. That's light saying how do your clothes get contaminated from sunlight.

However, nuclear powerplants, nuclear waste, and certain radioactive isotopes (many are found in nature) do produce gamma radiation with a frequency of 0.00001 - 0.0000006 um. Gamma radiation reacts with the ocean the same as any other type of radiation (light, radio waves, cosmic rays etc) - the ocean water effectively attenuates it and the energy is converted to a little bit of heat. It is not possible for the ocean to store any type of radiation and therefore it can not be "contaminated with nuclear radiation."

However it is theoretically possible for an ocean to be contaminated with radioactive compounds and elements (as opposed to nuclear radiation as specified in your question) which emit gamma radiation, such as certain isotopes of uranium, potassium, iodine, and carbon in suspension or solution, or even by gases such as radon. There are not enough known concentrations of these elements in nature to contaminate an entire ocean, so the scenario you propose is not possible.

Answer 2

it can't the ocean is the earth trash can and anything thrown in the ocean will in fact stay there but even though you piss in it throw your nukes and banana peels in the ocean it still brings us the sweet sweet wonderful rain i call it from toliet to tap . enjoy the plentyfulness of rain water the ocean brings.