Above is a map of air contamination via dispersement of toxic chemicals from various waste incinerators around Jacksonville Florida. I chose this map because I am from Jacksonville and I found it very interesting to see this. As we learned, isopleths are used when we can't quite use classes or actual numerical depictions on our maps. An isopleth is a type of contour line that connects areas that have equal values. So, in the map above, the red line indicates areas around Jacksonville with equal amounts of the toxic chemical wastes. It can be helpful to use isopleths when we need to depict information more visually, like in this case, to show the "barrier." It also greatly helps in making correlations about the damage that these toxic waste incinerators are doing.
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