2002 Estimated County
Average Ambient Air Concentration
           -New England-
         Carbon Tetrachloride
                                                    Distribution of U.S.
                                                Ambient Air Concentration
                                               (micrograms per cubic meter)
                                                   Carbon Tetrachloride
                                                            0.62 - 0.70
                                                            0.61 -0.62
                                                            3.5e-5-0.61
                 Source: U.S. EPA/ OAQPS 2002 NATA. EPA Region 1- CIS Center Map Tracker ID= 4993

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