Dissolved Gases in Water

Dissolved Gases in Water.

No naturally occurring body of water is free of dissolved gases.

Their spatial and temporal distribution is dependent on factors such as precipitation, inflow and outflow, physical factors like temperature, movement of water and chemical factors such as solution processes, combination and precipitation of reactions, complex formation etc.

Among the dissolved gases present in water, oxygen and carbon dioxide are direct indicators of biological activity of water bodies.

Dissolved Oxygen is used for respiration by aquatic plants and animals.
Dissolved Carbon Dioxide is used for photosynthesis by aquatic plants.

Next Topics about dissolved gases…
Biological Oxygen Demand of Water
Chemical Oxygen Demand of Water
Carbon Dioxide in Water

Next Topics…
Primary Nutrients in Water and Eutrophication
Toxic Constituents in Water
Pesticides in Water
Oil in Water

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Physical Water Quality
Chemical Water Quality
Biological Water Quality
Water Basics 101

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