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 ------- |