Determining The Water Quality Of A Body Of Water

829 words - 3 pages


Water quality is a complex term to evaluate. The health of a water ecosystem depends on so many variables. These parameters are each intertwined and connected. For simplicity there are several mainstream parameters that are used in conjunction with each other to determine the water s quality. These include: alkalinity, ammonia content, carbon dioxide, chlorine, nitrates, dissolved oxygen, phosphates, temperature, and turbidity. The most visible sign of poor water quality is reduced animal populations. Almost all animals will suffer if pollutants are in the water supply. There are several ways to lower pollution levels in water.
Alkalinity is not a measure of pollution. It is a total measure of the substances in water that have acid-neutralization abilities. Alkalinity is not pH. PH measures the strength of an acid or a base. Alkalinity actually shows a solution s power to react with an
acid and buffer its pH. In a sense, alkalinity is the ability to change pH. Alkalinity is important to animals that live near water and in water because it protects against pH changes. This quality of water counterattacks acid rain. The main sources of natural
alkalinity are rocks, which contain carbonate, bicarbonate, and hydroxide compounds. If an alkalinity level is low it may be necessary to make carbonates and hydroxides more abundant. This can be achieved by adding rocks into water systems.
Ammonia is characterized by NH3. It comes from fertilizers, and finds its way into watersheds by runoff. Ammonia speeds the process of eutrophication in waterways. It is very toxic to fish and aquatic organisms. Pollution occurs when ammonia levels rise
above .1mg/L. Ammonia concentrations may be eliminated by reducing farm runoff. Often times, when there are many trees and rooted plants runoff can be greatly reduced.
Carbon Dioxide is a universal problem. Recently the news has been parading the information about global warming. Well, carbon dioxide is also a problem for water systems. All animals and many bacteria use oxygen and release carbon dioxide. This includes underwater animals and bacteria. Green plants, in turn, absorb the
carbon dioxide and, by the process of photosynthesis, produce oxygen. When carbon dioxide levels become high animals usually suffer detrimentally. A good way to lower carbon dioxide levels is to increase the number of green vegetation in the water. This will allow for the oxygen levels to increase and the carbon dioxide levels to decrease.
Chlorine is used all over the world. It remains one of the most effective means to disinfect water supplies. The problem resides when...

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