2002 Estimated County         •
Average Ambient Air Concentration
            -New England-
               Chromium
                                                      Distribution of U.S.
                                                   Ambient Air Concentration
                                                  (micrograms per cubic meter)
                                                           Chromium
                                                              0.0018-0.064
                                                              0.0011 -0.0017
                                                              0.00041 -0.0010
                                                              0.000095 - 0.00040
                                                              0.000054 - 0.000094
                                                              0.000035 - 0.000053
                                                                      Miles
                                                                        AFPA
                  Source: U.S. EPA/ OAQPS 2002 NATA. EPA Region 1- CIS Center Map Tracker ID= 4993 ^^^^ *»

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