2002 Estimated County         
Average Ambient Air Concentration
            -New England-
              Naphthalene
                                                         Distribution of U.S.
                                                      Ambient Air Concentration
                                                    (micrograms per cubic meter)
                                                             Naphthalene
                                                                   ug/m

                                                                 5.85e-002 - 5.25e-001
                                                                 4.036-002 - 5.846-002
                                                                 2.19e-002-4.01e-002
                                                                 1.19e-002-2.19e-002
                                                                 5.70e-003-1.19e-002
                                                                 4.096-004 - 5.706-003

                                                                 Interstate

                                                                   N
                                                                          Miles
             ""Source: U.S. EPA/ OAQPS 2002 NATA Final. EPA Region 1- CIS Center Map Tracker ID= 6208

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