2005 Estimated Census Tract
Ambient Air Concentrations:
Carbon Tetrachloride
-New England-
Census Tract
Ambient Air Concentration:
Carbon Tetrachloride
Mg/m3
U.S. Highest
0.62 - 0.70
50 ¦
Percentile	_ ^ __
25	0.61 - 0.62
U.S. Lowest 0	0.00 - 0.61
County Boundary
Interstate
v>EPA
Source: U.S. EPA/ OAQPS 2005 NATA. EPA Region 1- GIS Center Map Tracker ID— 7260. January 20, 2011

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