Graphs released last week that show what has contaminated Iqaluit’s drinking water don’t include enough information to be useful, say two University of Toronto professors. Nunavut’s chief medical health officer, Dr. Michael Patterson, presented and interpreted the graphs at an Oct. 22 news conference. They are missing key information, including labelling and actual concentrations for each compound detected, said Miriam Diamond, a professor of earth sciences at the University of Toronto. Diamond is one of two experts Nunatsiaq News asked to help interpret how the data were presented in the graphs.