tritium is hydrogen with two extra neutrons. so it emits an electron, converting one of the neutrons into a proton via B- decay, becoming helium-3. helium-3 being helium, it escapes into the atmosphere and eventually leaves the planet as it's too light for gravity.
tritium is hydrogen with two extra neutrons. so it emits an electron, converting one of the neutrons into a proton via B- decay, becoming helium-3. helium-3 being helium, it escapes into the atmosphere and eventually leaves the planet as it's too light for gravity.