Description: This map from the U. S. Geological Survey Circular 1134, The South Florida Environment, shows the total phosphorus concentrations in water at selected sites in south Florida, based on data from South Florida Water Management District and USGS during the period 1984 to 1993. The selected sites show total phosphorus concentrations in milligrams per liter, with the data displayed in box-and-whisker format. Source: B. F. McPherson and R. Halley, USGS Circular 1134 (Washington, DC: U. S. Government Printing Office, 1996) 43 Map Credit: Courtesy the University of South Florida Library |
|