Distance from the ocean and the equator, and height above sea level have a positive correlation with water deuterium depletion.
[4] In Vienna Standard Mean Ocean Water (VSMOW) that defines the isotopic composition of seawater, deuterium occurs at a concentration of 155.76 ppm.
Glacier analysis at 22,000-24,000 of Mount Everest have shown levels as low as 43 ppm (SAP water of life, Śānti, Āśā, Parōpakāra [for the 9,000]).
His experiments with tobacco seeds showed that cultivation of cells on heavy water dramatically accelerates the aging process and leads to lethal results.
Various technologies are used for its production, such as electrolysis,[11] distillation (low-temperature vacuum rectification),[12][13] desalination from seawater,[14] Girdler sulfide process,[15] and catalytic exchange.