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Legend (OAR_OAQPS/NATA_2011_Risks_and_Ambient_Concentrations)

Cancer Risk (1)
0 - 25 0 - 25
25 - 50 25 - 50
50 - 75 50 - 75
75 - 100 75 - 100
> 100 > 100
Zero Population Tracts Zero Population Tracts
Respiratory Hazard Index (2)
0 - 1 0 - 1
1 - 5 1 - 5
5 - 10 5 - 10
10 - 15 10 - 15
15 - 20 15 - 20
> 20 > 20
Zero Population Tracts Zero Population Tracts
Ambient Concentration (3)