Tritium is a hydrogen isotope, just releasing it in the atmosphere where it will float up and eventually escape seems a possibility. Not suggesting, just asking, really.

OTOH I thought tritium was rather valuable. I guess finding a buyer might be the difficult part.

Out of interest, I have a beta light (https://www.amazon.co.uk/Nite-Tritium-Keyring-Glowring-Colou...) and it's still glowing well after a couple of years. I've wondered how much energy it actually contains, were it released at once - any one know?