BRONZE

#### Air Particles and Air Quality

I chose 4 places, I will see which one has the best air quality, the one that has the worst air quality and the ones in the middle.

### Hypothesis

I think that my basement will have the greatest air quality because my front yard, backyard and the Yorkville park have cars passing by every now and then.

I think my backyard will have the worst air quality because it has more cars passing by since it is winter so not that much people go outside in the park.

### Research

I am personally really interested in the topic of air molecules in science. These are 2 of the websites which gave me the interest:

I like this one for checking the word's pollution: https://waqi.info/#/c/19.161/149.938/2.5z

This one is thee same thing but live: https://www.iqair.com/ca/world-air-quality

### Variables

Manipulated Variable: Vaseline is my manipulated variable.

Responding Variable: Air quality is my responding variable.

Controlled Variables : The time ( day/night ) and temperature is my controlled variable.

Materials:

Vaseline
String
Black permanent marker
Milk carton
Hole puncher
Magnifying glasses

### Procedure

First, with the milk carton, I will cut out 12 flat squares: approximately 3 inches wide and 3 inches tall. Then, I will hole punch them each at the corner and attach a string to them. Using the black permanent marker, draw a 1-by-1 inch square in the middle. Then, apply vaseline to the black square. Then, I will hang 3 squares at each of my 4 locations ( My Basement, My Front Yard, My Back Yard, Yorkville *Community* Park ). After 3-5 days, take the squares back. Make sure there is no rain! If there is rain, take the squares, even if the full 5 days are not completed, and put them back after rain. Once you retrieve the squares, use a magnifying glass and track down how many visible particles are seen. Use this chart:

 Location: Square 1, particles seen: Square 2, particles seen: Square 3, particles seen: Total: Average:

**Complete this 4 times ( for each 4 locations)**

Remember to take and examine the squares 1 at a time. Add up all the square particle numbers and put that number in the “Total” box. Then divide the total number by 3 and write that answer in the “Average” box.  Take a picture of all the squares. If your camera has a micro-setting for close ups, the pictures will turn out better. After this, make a bar graph including all the data you collected. Next, make a color key or write down the location and make 4 bars for the 4 locations ( you are graphing the totals of the 4 locations ). To make your poster, you should print out photos too.

My results:

My Basement - Reports:

 Square 1 - Particles Seen: 3 Square 2 - Particles Seen: 6 Square 3 - Particles Seen: 4 Total amount of particles seen: 13 Average: 4.33333

My Backyard - Reports:

 Square 1 - Particles Seen: 14 Square 2 - Particles Seen: 11 Square 3 - Particles Seen: 12 Total: 37 Average: 12.3333

My Front Yard - Reports

 Square 1 - Particles Seen: 8 Square 2 - Particles Seen: 12 Square 3 - Particles Seen: 6 Total: 26 Average: 8.66667

Yorkville Park - Reports:

 Square 1 - Particles Seen: 11 Square 2 - Particles Seen: 9 Square 3 - Particles Seen: 13 Total: 33 Average: 11

### Observations

I observed that  the places with cars passing by more often ( My backyard and Yorkville Park ) have worse air quality than places where only a few people pass by ( My front yard and My basement ). So cars make more pollution than human beings themselves.

### Analysis

Since the vaseline is spread around inside the black box, we can see little particles which indicate dirty air.

The more particles you see, the dirtier the air quality is.

### Conclusion

This is the order it went from best air quality to worst air quality:

My basement had the best Air quality, then my frontyard, then the Yorkville Park, then my backyard.

So my basement had the best air quality and my backyard had the worst air quality.

### Application

It will encourage other people to do this expirement too and see which place has worse air quality and maybe even could encourage them to help make pollution stop.

### Sources Of Error

There could have been an error outside, after the little square boxes have been hund out, the wind could have blown the pieces away.

Maybe also when applying the vaseline, you maybe might have not applied it very smoothly so you might not have seen enough particles that you would have been seeing.

### Citations

Intructions:

First, search sciencebuddies.org. Then, at the top right corner, click on the search button and search up "Air Quality." If a little pop-up screen comes up saying "Resource type," press science projects. Then scroll down, past a little video saying "15 best science projects," and presss the first link saying "Air Particles and Air Quality."

OR

Press this link if it works:

https://www.sciencebuddies.org/science-fair-projects/project-ideas/EnvSci_p009/environmental-science/air-particles-and-air-quality

### Acknowledgement

Website: Science Buddies

People: none