Phoenix Air Particulates Lab Report  -  2008

     In this lab report, we wrote in the Maximum Contaminant Level (MCL = toxic limit), in Parts-per-Million, of these metals

              in our ambient air particulates.

     Here are pictures of some of these readings, comparing them to the Maximum Contaminant Levels,
               or toxic limits, for each of these metals (the reading is in blue, the toxic limit is in red):