Dissolved Oxygen at LR15
| down S004-206 LOST R ON CSAH-20 NEAR HEADWATERS, 6 MI SW OF CLEARBROOK |
LR15 |
up (n/a) |
Dissolved Oxygen 
Dissolved oxygen is an essential element for the maintenance of healthy lakes and rivers. Oxygen is both produced and consumed in a river. It is produced or enters a river through diffusion from the surrounding air and as a product of photosynthesis from aquatic plants. Fast-moving water dissolves more oxygen than still water, as the churning motion mixes the air into water. Oxygen is consumed or removed from a river through respiration by aquatic plants and animals and decomposition of organic matter by microorganisms. Dissolved oxygen is lowest in the early morning as the processes that consume oxygenârespiration and decompositionâhave continued through the night while photosynthesis has stopped. Dissolved oxygen also is lowest during the summer months since water temperature is higher in the summer and warm water holds less oxygen than cold water.
Dissolved oxygen is an essential element for the maintenance of healthy lakes and rivers. Oxygen is both produced and consumed in a river. It is produced or enters a river through diffusion from the surrounding air and as a product of photosynthesis from aquatic plants. Fast-moving water dissolves more oxygen than still water, as the churning motion mixes the air into water. Oxygen is consumed or removed from a river through respiration by aquatic plants and animals and decomposition of organic matter by microorganisms. Dissolved oxygen is lowest in the early morning as the processes that consume oxygenârespiration and decompositionâhave continued through the night while photosynthesis has stopped. Dissolved oxygen also is lowest during the summer months since water temperature is higher in the summer and warm water holds less oxygen than cold water.
LR15
Mode: Series | Box & Whiskers
Reference: None | Site Average | MN State | Valid Range
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