Quoting Hargraves p. 237:
Although most Li-6 was previously removed from the fuel salt, more is continuously generated by n + Li-7 -> Li-6 + n + n. Tritium also comes from n + Li-7 -> He-4 + H-3 + n. A 100 MW LFTR would generate 25 mg of tritium per day, responsible for 240 curies of radiation. The US legal emissions limit is 10 curies per day (although 5200 curies per day is allowed in Canada), so the tritium should be removed and sequestered where it can decay harmlessly with a 12-year half life.
