Map bar plots are plotted
on the following scale
North Boulder Creek - Boulder Creek
Dissolved Oxygen Time Series for 1999
Select on the map plot to view detailed time series information for Dissolved Oxygen at that site. Select on the site icon to view time series information for all parameters at that site.
Dissolved Oxygen (DO) is the amount of oxygen dissolved in the water. DO is a very important indicator of a water body's ability to support aquatic life. The amount of DO in water depends on several factors, including temperature (the colder the water, the more oxygen can be dissolved); the volume and velocity of water flowing in the water body; and the amount of organisms using oxygen for respiration. The amount of oxygen dissolved in water is expressed as a concentration, in milligrams per liter (mg/l) of water. The optimal DO for adult brown trout is 9-12 mg/l. Human activities that affect DO levels include the removal of riparian vegetation, runoff from roads, and sewage discharge.