naaqs updates
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NAAQS Updates. AMTAC ; April 12, 2011 Meredith Kurpius. - PowerPoint PPT PresentationTRANSCRIPT
NAAQS Updates
AMTAC; April 12, 2011
Meredith Kurpius
Pb* NO2 (primary) SO2 (primary)
10/15/2008 1/22/2010 6/2/2010
NAAQS Level 0.15 ug/m3 rolling 3-month New 100 ppb 1-hr; Retained 53 ppb annual75 ppb 1-hr (Revoked
140 ppb 24-hr & 30 ppb annual)
EPA Guidance Part of NAAQS rulemaking Monitoring TAD summer 2011Designations guidance 4/2011 ; 110(a)(1) modeling guidance to
follow
12/15/2010 1/2011 6/2/2011using 2007-2009 using 2007-2009 using 2007-2009 or 2008-2010
120 Day Letters 6/17/2011 8 or 9/2011 2/2012
10/15/2011 1/2012 6/2/2012using 2008-2010 using 2008-2010 using 2008-2010 or 2009-2011
New Monitoring Requirements?
> 0.5 tpy sources; >1 tpy airports; Urban Ncore; 15 study airports
Urban near road for CBSAs > 500,000; urban community for CBSAs > 1M; 40 EJ tbd
Based on Population-Weighted Emission Inventory (PWEI).
Include in Network Plan By:
7/1/2011 7/1/2011 7/1/2011
New Monitors Operational By:
12/27/2011 (Rule signed 12/27/2010)
1/1/2013 1/1/2013
NAAQS Review
S/T/T Recommendations Due
Designations
Ozone CO PMNPR - 3/12/2008 NPR - 1/28/2011 NPR - Summer 2011NFR - 7/29/2011 NFR - 8/12/2011 NFR - Spring 2012
NAAQS LevelProposed primary: 0.060-0.070 ppm;
Proposed secondary: 7-15 ppm-hrs Proposed primary: retain 35 ppm 1-hr, 9 ppm 8-hr.
Reviewing: 24-hr, coarse primary, visibility secondary
std
EPA Guidance In development
Proposed: 8 mos from promulgation 8/12/2012** Spring 2013using 2008-2010? using 2009-2011 using 2010-2012
120 Day Letters Proposed: 16 mos from promulgation 4/2013** Winter 2014
Proposed: 20 mos from promulgation 8/12/2013** Spring 2014using 2009-2011? using 2010-2012 using 2011-2013
New Monitoring Requirements?
Separate rulemaking underway. Proposed minimum monitoring for urban and non-urban areas; longer
season
Proposal: CO collocated with each near-road NO2 monitor in CBSAs of > 1M.
Include in Network Plan By:
proposal: 7/1/2013
New Monitors Operational By:
proposal: 1/1/2013
NAAQS Review
S/T/T Recommendations Due
Designations