Section 326IAC1-4-55. Montgomery County

Latest version.

The following attainment status designations are applicable to Montgomery County:

Pollutant	Designation
SO₂	Better than national standards.
CO	Unclassifiable or attainment effective November 15, 1990.
O₃	Unclassifiable or attainment effective July 20, 2012, for the 2008 8-hour ozone standard.¹
PM_2.5	Unclassifiable or attainment effective April 5, 2005, for the annual PM_2.5 standard.
PM_2.5	Unclassifiable or attainment effective December 13, 2009, for the 24-hour PM_2.5 standard.
PM₁₀	Unclassifiable effective November 15, 1990.
NO₂	Cannot be classified or better than national standards.
Pb	Unclassifiable or attainment effective December 31, 2011.
¹Unclassifiable or attainment effective October 18, 2000, for the 1-hour ozone standard which was revoked effective June 15, 2005.

(Air Pollution Control Division; 326 IAC 1-4-55; filed Dec 26, 2007, 1:43 p.m.: 20080123-IR-326070308FRA; filed Jan 30, 2013, 12:34 p.m.: 20130227-IR-326110774FRA; filed Oct 25, 2013, 2:41 p.m.: 20131120-IR-326130164FRA)

                    
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