preview

Testin the Quality of Water Essay

Good Essays

Introduction During lab on Monday, April 9, 2002 our class conducted a lab on water chemistry and pollution. The two bodies of water that were choose as samples where, the Wall pond and the HGTC pond. Each group had to test the water for Temperature, Dissolved Oxygen, Nitrate, Phosphate, pH, and Turbidity. Only two people where chosen to test the waters for Coliform bacteria. “Coliform bacteria are not pathogenic (disease causing) organisms, and are only mildly infectious. For this reason these bacteria are relatively safe to work with in the laboratory”. (Wilkes, 2001) This experiment is closely related to the study of science because it is a direct study of the environment. “The World Heath Organization estimates that 80 percent of …show more content…

Next two Dissolved Oxygen TesTab where dropped into the test tube. After that screw the cap on the tube, make check to make sure there are no air bubbles present. Next invert the tube for a time limit of 4 minutes until the tablets and disintegrated. After a five minute time period as elapsed a color should start to develop, compare the color sample to the dissolved oxygen color chart and record the data. After the dissolved oxygen data was recorded, the group tested the Wall pond for Nitrate. First, fill the square-sided test tube with 5mL of the water sample. Next add one Nitrate WR CRA TesTab. Next, put the cap on the test tube and invert until the tablets have disintegrated. After the five-minute time-period has passed, wait for the red color to develop, compare the color of the sample to the Nitrate color chart, and record the results as ppm Nitrate. Next the group studied the wall pond for Phosphate. First fill the tall square-sided with 10mL of the water sample. Next, add one Phosphorus TesTab. Next, screw the cap on the test-tub and invert until the tablet has disintegrated, and after five minutes a blue color should start to develop. Lastly, compare the color to the sample to the Phosphate color chart and record the results has ppm Phosphate. Next the wall pond was tested for pH. First fill the square-sided test tube with 10mL of the water sample. Next add one pH tablet. Then screw the cap on the test tube and invert until the

Get Access