Snow falling on Mount Everest at altitudes of 22,500 feet (6,858 m) to 25,432 feet (7,752 m) contains levels of arsenic and cadmium considered dangerous for drinking water.
Džomolungma nõlvadele 6858 kuni 7752 meetri kõrgusel langev lumi sisaldab sel määral arseeni ja kaadmiumi, et seda on ohtlik joogiveena tarbida.