Nitrate Concentration of the Cove River Biome During a Six Month Period

Student(s):Cinthia Fabian and Abdul-Razak Zachariah
Grade Level:Secondary School (grades 9-12, ages 14-18)
GLOBE Teacher:
Contributors:
Report Type(s):Standard Research Report
Protocols:
Date Submitted:05/10/2012

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The Cove River biome consists of a seven-kilometer river and a 15.28 acre open space park for public use, though it is mostly used for research and educational purposes, such as the GLOBE Program and archaeological digs. The Cove River biome is home to several animals, including foxes, large trees that produce high amounts of canopy cover and plant life found in the river and in the soil. This experiment is being performed to discover the nitrate concentration of the Cove River as a way to investigate the river's level of pollution and to determine if the nitrates have a negative effect on the biome. From October of 2011 to March of 2012, data was collected from water samples of the Cove River to determine the temperature of the river the pH of the river, the nitrate levels of the river and the dissolved oxygen levels of the river. Though the focus of this experiment is on the impact of nitrates on the Cove River, other variables were accounted for because the lab group wanted to check if other factors correlated with the levels of nitrate. Such correlation was seen in some form as shown by the graph and data, especially between the dissolved oxygen and nitrate levels on some testing dates. Overall, the data showed that the Cover River has nitrate levels that do not exceed or come close to the Maximum Contaminant Level set by the Environmental Protection Agency (EPA), which is 10 ppm or 10 mg/L. The Cove River biome is, currently, safe against pollution, but if runoff of nitrogen caused by heavy precipitation (which was a factor correlated with nitrate levels in the results) and by the waste of the surrounding civilization continues, then pollution of the biome is still a threat.



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