2002 Estimated County • Average Ambient Air Concentration -New England- Chromium Distribution of U.S. Ambient Air Concentration (micrograms per cubic meter) Chromium 0.0018-0.064 0.0011 -0.0017 0.00041 -0.0010 0.000095 - 0.00040 0.000054 - 0.000094 0.000035 - 0.000053 Miles AFPA Source: U.S. EPA/ OAQPS 2002 NATA. EPA Region 1- CIS Center Map Tracker ID= 4993 ^^^^ *» ------- |