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Dimmitt Middle School's Exploration of Pollution Levels in Puget Sound

In October 2010, 19 Dimmitt Middle School students embarked on an investigative journey aboard the Carlyn to assess pollution in Puget Sound. Motivated by a desire to evaluate the environmental health of the sound, the students focused on measuring nitrates, phosphates, and solid debris levels in the water. Using various scientific tools such as colorimeters and neuston nets, they recorded their findings over two days. The results indicated slight pollution levels, prompting further discussion regarding the protection of this vital ecosystem.

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Dimmitt Middle School's Exploration of Pollution Levels in Puget Sound

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  1. Dimmitt Middle School October 2010 Pollution in Puget Sound?

  2. October 7-10, 2010 19 Dimmitt Students went on board the Carlyn to investigate:

  3. Introduction • We were inspired to look for pollutants in the water because we wanted to find out if the Puget Sound was being well taken care of or not. Large amount of pollutants would mean the Puget Sound wasn’t taken care of the right way. Whereas, a small amount of pollutants would mean the Puget Sound was being taken care of. Having some Phosphates and nitrates are okay but too much could be a problem.

  4. Hypothesis • If we sample at the surface at different locations, then we will find more nitrates and phosphates then debris because there are more sources of nitrates and phosphates and they are more dispersed in Puget Sound.

  5. Materials • Neuston Net • Buckets with ropes attached • Colorimeter kits • Gloves • Refractometer • Goggles • Graduated Cylinder • Eyedroppers • Microscopes • Life vests

  6. Experimental Design Nitrates: • We took water samples with bucket from the side of the boat. • We analyzed the water in a colorimeter to find the nitrate level in the sample. • We recorded the nitrate level in ppm (parts per million) • Samples were analyzed and recorded once in the morning and • once in the afternoon for two days.

  7. Phosphates: • We took water samples with bucket from the side of the boat. • We analyzed the water in a colorimeter to find the phosphate level in the sample. • We recorded the phosphate level in ppm (parts per million) • Samples were analyzed and recorded once in the morning and • once in the afternoon for two days.

  8. Solid Trash: • We placed the neuston net (the largest net aboard Carlyn) into the water. • The neuston net was drug for a total of 6 meters on the surface of the water. • The net was taken out of the water by 5 people. • The amount of trash in the neuston net was collected and recorded

  9. Results

  10. More Results

  11. Interpretation • After analyzing our data, we are undecided about our hypothesis because we had a hard time comparing the data (parts per million to whole numbers). Given the amount of phosphorous and nitrates collected, we conclude that there is slight levels of pollution in Puget Sound waters.

  12. Thank You Salish!!!!!!!

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