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Nitrogen Dioxide (1971) Designated Area/State Information with Design Values

Data is current as of July 31, 2019
Design Values in ppb. "Current Design Values" are current as of the posted Green Book date. Check the Air Quality Design Value site for design value updates.

Display:       Nonattainment and Maintenance Areas       Nonattainment Areas       Maintenance Areas
Click underlined column heading to change report order Current Design Values
as of 05/08/2018
(2017)
 
Area Name  State  Current Status  class sort Current
Classification
or at Redesignation
 
Design Values  Meets
NAAQS
Determin.1
 
No.
Ctys
 
2010
Population
 
EPA
Region
 
click area name for state/county list click for
classification history
 
Total
Areas

Total
Ctys
Total
Population
(2010)
 
Nonattainment 0 0 0  
Maintenance 1 4 15,799,134  
Nonattainment and Maintenance 1 4 15,799,134  
Los Angeles-South Coast Air Basin, CA CA Maintenance A Primary 32 Yes 4 15,799,134 09

1 See the Air Quality Design Value site spreadsheet footnotes for information about "Insufficient Data" Meets NAAQS Determinations.

Design Values in ppb. "Current Design Values" are current as of the posted Green Book date. Check the Air Quality Design Value site for design value updates.


County subtotals and grand totals may not equal sum of the counties. Part counties are only counted one time within groupings. Multi-state nonattainment areas are counted in totals as maintenance areas when all states in the area have been redesignated. Multi-state areas are counted only once in area totals.

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