[thirty] Especially, Xenon is beneficial for calculations of water loss after some time. Not merely is it a noble gas (and therefore is not faraway from the atmosphere by means of chemical reactions with other things), but comparisons between the abundances of its nine stable isotopes in the fashionable environment https://kevalaniru.com/water-in-gabletop-cartons-versus-water-in-pet-bottles-in-a-life-cycle-assessment-face-off/