Air Quality Comparison: Particles and Ozone

Overview

Objectives/Goals The goal for our project is to inform and educate others on the quality of air that is around us and the potential hazards in the atmosphere. Methods/Materials Particles: 1. Find locations for experiment to conduct experiment. 2. Measure distance from testing site to the source (major roadway). 3. Creat trapper fro collecting particles. - 3" by 5" index card - 4 by 7.5cm hole. 4. At location attach tape on one side and stick the trap to the testing site. 5. Return three days later and cover the tape with more tape and put more traps up. 6. Repeat steps 4 - 5 untill desired ammount of data is obtained. 7. As data is obtained look under a high powered microscope and measure the size of the particles that were collected by the traps. 8. Analyze data and form a conclusion. Ozone: 1. Find locations for teating (high power lines). 2. Obtain correct ammount of ozone readers. 3. Place the ozone indicator at the source, 10 meters, and 36 meters away. 4. Retrieve ozone idicator after one hour after put up and come part to the idication card. 5. Repeat steps 3 - 4 untill desired number of data is obtained. 6. Analyze data and form a conclusion. Materials: - 3" by 5" index cards (105); - square hole puncher; - clear packing tape; - ozone strips (100); - microscope; - calculator; - meter wheel. Results Particles: At the first location, 100 meters away (luigi) there was on average 41 particles and an average size of .26 milimeters. At the second location, 400 meters away (solosano) there was on average 53 particles and an average size of .34 milimeters.At the third and final location, 1000 meters away (rucker) there was an average of 42 particles and an average .41 milimeters. Conclusions/Discussion Our hypothesis was supported because the farther away the particle traps were from the source the larger the particles were and the ozone would be less occuring the further away it would be from the source. But our data may have been inconclusive because we had some flaws.

Competition history

• CSEF 2008 Environmental Science (Junior Division Only) · Entry J1004

Resources

• CSEF project summary ↗

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