For the municipality of the same name in Gloucester County, see Monroe Township, Gloucester County, New Jersey.
How to measure dissolved oxygen. Dissolved oxygen is measured using a dissolved oxygen meter. The best method is to take the measurement in the field at the same time each day because DO concentrations can vary throughout a 24 hour period.issolved oxygen (DO) is a measure of the quantity of free oxygen molecules in water.
Saturation, in this regard, is the maximum amount of oxygen that can theoretically be dissolved in water at a given altitude and temperature. The amount of free oxygen that is dissolved in water is measured since it can be used as an indication of the ability of a particular aquatic habitat to support living organisms living in it.