11/29 Update

I have successfully downloaded my asthma data from the California Environmental Health Tracking Program website.  The data that I selected was also from 2015 and included all races, genders, and races.  My asthma data is not based off of the number of cases (which was surprisingly difficult to find usable data for) but is instead based off of the number of hospitalizations per county in 2015 that were because of asthma.  For the symbology I considered doing graduated symbols, but decided to go with proportional symbols because the purpose of my map is to look at the connection between the amount of ozone pollution and the number of asthma hospitalizations.  Therefore, when you look at the map with proportional symbols it is much easier to point out areas that are more effected rather than just looking at 3 symbols of different sizes that represent ranges of values.  I also considered using a special symbol, but I was unable to find one that would display clearly on the map in relation to the values.  It was difficult to find a color that I felt was appropriate, I did not want the color to distract from my ozone percentages and likewise.  Therefore, I decided on a gray color.  My next step is going to be to use a GIS analysis tool in order to determine if there is a correlation between these two variables and if the results that I am seeing are significant or due to chance.  I am interested to see what the test will reveal because the highest number of asthma hospitalization occurs in a county that has one of the highest percentages of days that went above the ozone pollution standards.