Fallacy: The claim that distilled water is devoid of oxygen is a fallacy.
Fact: The maximum amount of O2 in water at normal temperature and pressure is about 9mg/L, and all waters which are exposed to the atmosphere would have about the same amount. If water was out of contact with air then it is possible that the DO (dissolved oxygen) levels would drop slowly (e.g. perhaps tap water), but the O2 would get re-introduced when the tap was turned on and the water sprayed into a container, especially if there was a spray head fitting on the tap.
Peter Robinson PhD FNZIC
Environmental Client Services Manager
Hill Laboratories, Private Bag 3205, Hamilton, NZ
The amount of minerals in water affects its ability to dissolve oxygen.
Distilled water can absorb more oxygen than well waters with higher mineral content. Obviously sea water, for this same reason, holds less dissolved oxygen than fresh water.
Well waters usually contain smaller amounts of dissolved oxygen than surface supplies. In deep wells there may be a total absence of the gas.
Dr. Claude Piantadosi, director of the Center for Hyperbaric Medicine and Environmental Physiology at Duke University Medical Center, wrote in the British Journal of Sports Medicine that there is more oxygen in a breath of fresh air than in a liter of the most “hyperoxygenated” bottled waters.
Did you know…?
- Chlorine, a non-flammable, poisonous gas, is a major industrial chemical. Although classified as non-flammable, many combustibles will ignite in chlorine, creating toxic byproducts. Chlorine vapors, heavier than air, will remain close to the ground and expand rapidly when released, creating a very hazardous atmosphere.
- In 1997, The American Public Health Association unanimously passed a resolution urging American industry to stop using the chemical chlorine.
- When you open the door of your dishwasher after washing, toxic volatile chlorine from dish detergent and tap water is released into the air.
- Cancer-causing chemicals like chlorine found in many household products are readily absorbed through the skin.
- Pregnant women in their first trimester who drink five or more glasses of chlorinated tap water a day may be at a much higher risk of miscarriage than women who drink non-chlorinated water.