 Does indoor air have more particle pollution than outdoor air?  I am investigating this question because of the strong influence of air pollution in a way that tells if our houses are the ones that are more polluted or if it is just in the outdoor air.

 My hypothesis is that indoor air will have more particles than outdoor air will.  I believe that indoor air will have more particles because of hairspray, perfume, candles, and more everyday house products used.

 The government has developed The Clean Air Act, which defines EPA’s responsibilities for protecting and improving the nation’s air quality.  Since The Clean Air Act was passed in 1970, air quality has improved in many regions of the country.  Pollution levels inside can be up to 100 times the levels outside.  99% of the suspended airborne particles are to small to see.  Some potential emergencies could send tiny microscopic “junk” into the air.

 Materials  Note cards  Petroleum jelly  Tape  Spreading tool  Control/ variables stated  All samples were gathered using the same methods. All samples were exposed to the same amount of time and air.  I reviewed and compared the results of all data using the same comparison scale.  Variables : Location, temperature, and weather.  Instructions  Gather fourteen index cards. Label them from I-1 and O-1 all the way to I-7 and O-7. Place the petroleum jelly on I-1 and O- 1 through to I-7 and O-7. Next place the first two cards on the same window inside and out. NOTE: tape them to the window. After performing the above all the way to I-7 and O-7 take observations on the results.

 I-1  Slight change in color (yellow). A few unidentifiable particles.  O-1  Moderate color change (yellow). A few unidentifiable particles.

 I-2  A few spots of color change (tan). Some unidentifiable particles.  O-2  A bit more spots of color change (lighter color). Some unidentifiable particles.

 I-3  Much less color change. Mostly white in color. Less unidentifiable particles.  O-3  Slightly more color change (yellow). Similar amount of particles.

 I-4  Minor color change (dirty white). Few unidentifiable particles.  O-4  Less color change (cleaner). Few unidentifiable particles.

 I-5  Moderate color change (dirty white). More unidentifiable particles.  O-5  Moderate color change (dirty yellow). Particles appear larger, but unable to identify.

 I-6  Slightly less color change than recent. Few unidentifiable particles.  O-6  Most color change to date (yellow). Increase in unidentifiable particles.

 I-7  Color change is very slight (yellow). Few unidentifiable particles.  O-7  Slightly less color than recent. More black and brown particles and 1 green particle.

 The experiment tested my hypothesis by displaying which air has more particle pollution.  I believe that it was tested because the card’s contents showed the differences of the number of particles and air quality.

 My hypothesis was incorrect. The petroleum on the outdoor cards contained more particular particles.  To develop better data, I would have placed the cards in numerous amount of places, instead of about only six locations.  A question that developed from the results of my experiment is: Does this experiment’s results and data only apply to where I live?

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