Dissolved Oxygen

Dissolved oxygen is a reference for the amount of free oxygen found in water. Dissolved oxygen is a very important parameter when looking at water quality as it can have a large influence on the organisms living in a body of water. Typically, dissolved oxygen provides a good indication of the condition of water, therefore understanding these levels can help a good deal when looking to improve or maintain good water quality.

 

 

The dissolved oxygen enters the water through the surrounding air, or as a result of plant life via photosynthesis. Air carrying oxygen can enter across the water surface, or can be introduced by processes such as aeration (occurring naturally or via man made solutions). Dissolved oxygen can also be introduced as a waste product from the process of photosynthesis from plant life such as algae, sea weed and other aquatic plants.