2002 Estimated County
Average Ambient Air Concentration
            -New England-
                  Diesel
                                                        Distribution of U.S.
                                                     Ambient Air Concentration
                                                   (micrograms per cubic meter)
                                                               Diesel
                                                U.S. Highest 100

                                                         95
1.14-12.8
9.15e-001 -1.13
6.48e-001 -9.146-001
4.28e-001 -6.47e-001
2.67e-001 - 4.27e-001
3.17e-004-2.66e-001
                                                                        Miles
              Source: U.S. EPA/ OAQPS 2002 NATA Final. EPA Region 1- CIS Center Map Tracker ID= 6208
                                                                          vxEPA

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