Read More Tipsâº âº. A programmable thermostat can help you save big on energy costs, adjusting the temperature when you're at work, at play, or asleep.
For an updated and comprehensive look at DO and the technology used to measure it, check out: Dissolved Oxygen, or Measuring Dissolved Oxygen. Dissolved oxygen in water is vital for underwater life. It is what aquatic creatures need to breathe. Dissolved oxygen is often called DO for short.
A small amount of oxygen, up to about ten molecules of oxygen per million of water, is actually dissolved in water. Oxygen enters a stream mainly from the atmosphere and, in areas where ground-water discharge into streams is a large portion of streamflow, from groundwater discharge.n summer and fall, when the water temperature is high, the dissolved-oxygen concentration is low. Dissolved oxygen in surface water is used by all forms of aquatic life; therefore, this constituent typically is measured to assess the health of lakes and streams.