Dissolved Oxygen

dissolvedOxygen on a FieldMeasurement is a critical purge stabilization parameter, particularly for sites monitoring redox-sensitive contaminants. Low dissolved oxygen indicates a reducing environment where certain contaminants behave differently. The DO must stabilize before sampling can begin; the dissolvedOxygen value in the FieldMeasurement reflects the final stable reading. The accompanying doUnit (such as mg/L or % saturation) specifies how the value is expressed.