2002 Estimated County        •
Average Ambient Air Concentration
            -New England-
                Benzene
    '
                                                     Distribution of U.S.
                                                  Ambient Air Concentration
                                                 (micrograms per cubic meter)
                                                           Benzene
                                                             1.7-7.9
                                                             1.5-1.6
                                                             0.93-1.4
                                                             0.59-0.92
                                                             0.31 -0.58
                                                             0.000035-0.30
                                                        0  10 20 30  40 50
                                                                     Miles
                 Source: U.S. EPA/ OAQPS 2002 NATA. EPA Region 1- CIS Center Map Tracker ID= 4993

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