Enviromental Science - Water Quality Parameters - Movie Review Example

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The most common parameters in measuring the quality of water are turbidity, temperature, dissolved oxygen, percentage saturation, pH and phosphate. Other parameters that can be used are nitrogen,…
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Enviromental Science - Water Quality Parameters
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Data Analysis of Water Quality in a Stream The quality of water in a stream in a stream can be measured by various parameters. The most common parameters in measuring the quality of water are turbidity, temperature, dissolved oxygen, percentage saturation, pH and phosphate. Other parameters that can be used are nitrogen, hardness, metal ion concentration e.t.c. This paper analyses and explains the common parameters for measuring the quality of water.
The tabulation below shows the mean values of the parameters in the experiment.
Temp (⁰C)
Dissolved Oxygen(ppm)
% saturation
Phosphate (ppm)
Quality of water
Down stream
Temp (⁰C)
Dissolved Oxygen(ppm)
% saturation
Phosphate (ppm)
Quality of water
Turbidity – it is the level or measure of cloudiness in water. Form the data, the steam is clear with zero turbidity for both upstream and down stream indicating a healthy well functioning ecosystem. However, group 3 found a turbidity value of 30 downstream and group 4 found a turbidity value of 40 upstream.
Temperature – the temperature of the water in the stream is within the normal temperature range. Water is cooler upstream than downstream meaning that metabolism activities in the stream are in the normal range. Temperature also affects reproductive activities in the stream and life cycles in general.
Dissolved oxygen – it is the mass of oxygen present in the water, and its units are parts per million (ppm) or milliliter per Liter. The average dissolved oxygen of 7ppm means that the mass of oxygen in the water is within the required range for aquatic life. The values of 5.6 ppm and 5.2 ppm for dissolved oxygen upstream and downstream respectively shows that oxygen levels are lower than average. The amount of dissolved oxygen may be affected by temperature, flow of water, aquatic plants and altitude.
Percentage Saturation – the percentage saturation is 62.2% upstream and 59% down stream. This is an indication of high metabolic activities in the stream that result in the production of by-products that increase the saturation of salts in water. This is a key parameter that lowers the water quality in the stream.
PH – the pH of water in the stream is extremely crucial. It affects the ecosystem and toxicity of the water. The average pH of water in a stream is 6 – 7. The pH of water in the stream is 8.05 upstream and 7.9 downstream. This pH levels are suitable for aquatic life in the stream.
Phosphate (ppm) - phosphate is a limiting nutrient which means that it is in short supply compared to nitrogen. The stream has low phosphate values of 1.6 and 1.4 for upstream and downstream respectively.
In conclusion, the water quality is fair. Despite the various deviations from the ideal conditions for the water quality in the stream, the water sustains ecosystems without many imbalances.
Works cited
“Water Quality Parameters”. Department of Environmental Quality. N.p. N.d. 8 April 8, 2012.
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