This project researched superfund sites in different parts of the United States, this included  29 counties including the five counties that served as control groups. The two graphs depicted on the Results page aids in showing an overall perspective, the first 5 counties on each graph are the control's The first shows the normalized rate of cancer in a bar graph while the control average value of 0.09677 is shown as a line. This control value is quite lower than the cancer rates for any of the counties with NPL superfund sites. The Second shows the average of the EPA's  site score for each county. the lowest county average value being 31.2, well above the minimum score 28.5. 

 

The majority of the counties, not including the control counties, followed the hypothesized correlation of  NPL Superfund sites being in an area with higher cancer rates within the county, except for two. The two counties that did not fit the correlation were Portsmouth, Virginia and Hudson, New Jersey even though they both include  several sites, the cancer rates were low. Possible reasons for this discrepancy, is that the hazardous materials were removed in a short amount of time, several of the sites scored low on the EPA's ranking system and few of them occurred within less than 10 years, so the effects may not have had enough time to develop. 

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It is worth noting the types of hazardous materials that were observed during the further research. The most prevalent chemicals that were seen in a majority of the NPL sites were: 1,1,1-TRICHLOROETHANE, 1,1-DICHLOROETHANE, 1,2-DICHLOROETHANE, ALUMINUM (FUME OR DUST), ARSENIC, and DIBENZO(A,H)ANTHRACENE. Which have been known to cause cancer, such types of cancers include: bladder cancer, leukemia, lung cancer, liver cancer, and skin cancer.

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