Conditions of Use
Okay. So in class we went down to the creek and did our jobs about the quality of the water. My job was Dissolved Oxygen (DO) What is dissolved oxygen you ask? Dissolved oxygen is oxygen that is dissolved it gets there by diffusion from the surrounding air. Dissolved oxygen is one of the best indicators of the health of a water ecosystem. What does it have to do with water quality? If water is to warm there may be not be enough nitrates, when there are to many bacteria or aquatic animals in the area they may over populate using DO in great amounts. Dissolved oxygen is measured in parts per million. (PPM) Dissolved Oxygen can range from 0-18 ppm. But most water systems need 5-6 ppm.4 to 5 ppm is the safe level for humans. Plants provide oxygen and consume carbon dioxide, the oxygen plants can be soon dissolved into water. Before
the creek: I put my solution in the cap of my probe and
hooked it up to my lab quest and I headed down to the creek.
What I did at the creek is: I put the settings on the lab quest to graph and I put my probe in the water and pressed start.
Then I twirled my probe in the water and when the line
reached half way on the graph and I pressed stop. Then I highlighted the middle of the line and pressed 'statistics' and
the pressed 'DO' and then pressed analyze.
FUN FACTS ABOUT DO(:
-A total of three-fourths of earth's oxygen supply is produced by phytoplankton in the ocean.
- The average DO of this year is 11.0 ppm.
Article posted March 10, 2011 at 10:09 AM •
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your blog helped me with the first question on my thing the thing that says how is Chimacum creek doing
Comment Posted on March 25, 2011 at 04:04 PM by
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Volleyball. Justin Bieber. Cheerleading. Ariana Grande. Shopping. Smiling.
Pretty Much explains me! Kayla C. (:
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