Dissolved Oxygen (DO)

Business / Agriculture / Dissolved Oxygen (DO): The oxygen freely available in water, vital to fish and other aquatic life and necessary for the prevention of odors in water. DO levels are a critical indicator of a waterbody’s ability to support desirable aquatic life. Secondary and advanced wastewater treatments are generally designed to ensure adequate DO in waste-receiving waters by removing, digesting, or oxidizing oxygen-demanding wastes (see biological oxygen demand).

Biochemical Oxygen Demand (BOD)

Business / Agriculture / Biochemical Oxygen Demand (BOD): A measure of the amount of oxygen consumed by natural, biological processes that break down organic matter, such as those that take place when manure or sawdust is put in water. High levels of oxygen- MORE

Oxygen Dissociation Curve

Science / Marine Biology / Oxygen Dissociation Curve: A curve showing the percent saturation of a blood pigment, such as hemoglobin, as a function of oxygen concentration of the fluid MORE

Oxygen Minimum Layer

Science / Marine Biology / Oxygen Minimum Layer: A depth zone, usually below the thermocline, in which dissolved oxygen is minimal MORE

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