X-Nico

unusual facts about parts per million



Fields, Oregon

Chinese workers collected alkali formed from evaporating spring water containing 80 parts per million (ppm) borate.

Polymer turbulence drag reduction

In 1948 Toms discovered by experiments that the addition of a small amount of polymer into a turbulent Newtonian solvent (parts per million by weight), which


see also

Los Angeles Basin

Dow Chemical Company operated a number of plants at oil fields in the Los Angeles Basin, and recovered iodine from brines that averaged 50 parts per million iodine.

Material Disclosure

For instance, in Europe, an electronic product cannot have more than 1000 parts per million (ppm) of a chemical called hexavalent chromium, a toxic substance made famous in the film Erin Brockovich.