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

                                                                 3.22e-002 - 6.07e-001
                                                                 1.60e-002-3.20e-002
                                                                 9.08e-003-1.60e-002
                                                                 5.12e-003-9.08e-003
                                                                 2.43e-003-5.12e-003
                                                                 2.006-005 - 2.426-003

                                                                 Interstate

                                                                   N
                                                                         50
                                                                          Miles
               urce: U.S. EPA/ OAQPS 2002 NATA Final. EPA Region 1- CIS Center Map Tracker ID= 6208

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