CMA4CH 2008, Mediterraneum Meeting Multivariate Analysis and Chemometry Applied to Environment and Cultural Heritage 2nd ed., Ventotene Island, Italy, Europe, 1-4 June 2008 __________________________________________________________________________________________ A. Pietrodangelo et al., Selection of Appropriate Tracers for the Source Identification of Airborne Particulate Matter Selection of Appropriate Tracers for the Source Identification of Airborne Particulate Matter by Fisher Weight and Factor Analysis A. Pietrodangelo 1 , S. Canepari 2 , C. Perrino 1 1 CNR Inst. for Atmospheric Pollution, Via Salaria Km. 29, Monterotondo St-00015, Rome, Italy 2 Dept. of Chemistry, University of Rome ‘‘La Sapienza’’, P.le A. Moro, 5, 00185 Rome, Italy                                     !" #      #$%       &  ’()*+,-      &  )         #$)’.     %      /      0 ,   ,  /           1       /    2    1 ,       1   1        )    31%   ,     $% 4%   5  1           1  $ "         1  1      %       1  #   "  1    &       " 1   %        6  "    )  )   %    % 7              #  %  81 1  %           9 #  %    1 % ,  6 ,  :% ;  ,  ,%          "  )  :2;     .     )          !"  #         #    6 ,            1   :;%   ,    1     +          1           / 6 ,     1      7           1          & 1  1 :% ; #  %    "   <9  ,         .//#./#$ = -    1     