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PM-2.5 (1997) Nonattainment Area Summary with History

As of January 30, 2015

Original PM-2.5 (1997) areas were designated effective April 5, 2005.

  NUMBER OF AREAS NUMBER OF COUNTIES 2010 POPULATION
Classification Original
2005
Baseline
Baseline
with
Adjustments*
Today Redesignated Original
2005
Baseline
Baseline
with
Adjustments*
Today Redesignated Original
2005
Baseline
Baseline
with
Adjustments*
Today Redesignated
Moderate 0 19 14 5 0 105 79 26 0 47,660,829 38,627,014 9,033,815
SUBTOTAL 0 19 14 5 0 105 79 26 0 47,660,829 38,627,014 9,033,815
   
Former Subpart 1 39 20 0 20 208 103 0 103 94,116,077 46,455,248 0 46,455,248
SUBTOTAL 39 20 0 20 208 103 0 103 94,116,077 46,455,248 0 46,455,248
   
GRAND 
TOTAL
39 39 14 25 208 208 79 129    94,116,077    94,116,077    38,627,014    55,489,063

* Please Note: Changes can occur that adjust the original baseline counts, e.g., classification changes, area boundary changes, new areas designated nonattainment.
See the report listing these adjustments to original 2005 nonattainment areas.

County subtotals and grand totals may not equal sum of parts. Part counties are only counted one time within groups.



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