Modifications

Conclusion/Modifications Errors: The wonder bread was bought and unpackaged 2 days prior to the experiment and could have been affected by mold spores in the air. The method for measuring the size of the mold growth was not completely accurate because mold growths grow in circles rather than in boxes. Water sprays were not calculated to be of the same ml, which could mean one sample got more moisture than another. The bags the samples were placed in were bought years before the actual experiment took place, meaning they were already covered in bacteria. The stream of PAM coming out of the PAM original spray was not constant at all intervals, meaning the 2x spray didn't have exactly 2 times as much PAM as the 1x spray, and the 3x spray didn't have exactly 3 times PAM as the 1x spray. Modifications: Acquire the wonderbread and keep packaged the day of the experiment Use a 3D scanner to measure the size of the mold growths. Measure water out in a beaker to be exactly 50 mL of water. Buy the bags the day of the experiment and do not open the box until they are needed to be used Measure out 50 mL of PAM original spray for the 1x spray, 100 mL of the PAM original spray for the 2x spray, and 150 mL of PAM original spray for the 3x spray. Works cited: "ACGIH - Industrial Hygiene, Environmental, Occupational Health & Safety Resource." ACGIH - Industrial Hygiene, Environmental, Occupational Health & Safety Resource. N.p., n.d. Web. 14 Oct. 2013. . "ACGIH - Industrial Hygiene, Environmental, Occupational Health & Safety Resource." ACGIH - Industrial Hygiene, Environmental, Occupational Health & Safety Resource. N.p., n.d. Web. 14 Oct. 2013. . "Alliant HAWK - Virtual Math Teacher." Alliant HAWK - Virtual Math Teacher. N.p., n.d. Web. 14 Oct. 2013. . Burge, Harriet A. Bioaerosols. Boca Raton: Lewis, 1995. Print. Centers for Disease Control and Prevention. Centers for Disease Control and Prevention, n.d. Web. 14 Oct. 2013. . "GraphPad QuickCalcs: T Test Calculator." GraphPad QuickCalcs: T Test Calculator. N.p., n.d. Web. 14 Oct. 2013. . Indoor Air--assessment Indoor Biological Pollutants.. Research Triangle Park, NC: U.S. Environmental Protection Agency, Office of Research and Development, Environmental Criteria and Assessment Office, 1992. Print. "Mold And Mildew." Www.idph.state.il.us. DEH, n.d. Web. 13 Oct. 2013. . "NAHB-Mold Tips:WHATIS." NAHB-Mold Tips:WHATIS. NAHB, 2002. Web. 14 Oct. 2013. "US Environmental Protection Agency." EPA. Environmental Protection Agency, n.d. Web. 14 Oct. 2013. .