Tennessee Air Quality Update

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TennesseeAir Quality Update

• Presented To
• Tennessee Chamber of Commerce Industry
• October 29, 2009

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Outline

• Ozone
• Knoxville Area 1997 Standard
• Memphis Area 1997 Standard
• New Ozone Standard Under Development
• Fine Particulate
• Daily Standard Designations (35µg/m3)
• Lead
• Nonattainment Area Recommendations
• Expanded Air Monitoring?

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Knoxville Area1997 Ozone Standard

• A Court Vacature of the EPA Part I 8-Hour Ozone
  Rule Eliminated The June 15, 2007 Deadline For
  Subpart I Basic Area SIP Submittals.
• A Bid For Redesignation To Attainment (2004-2006
  Data) Was Submitted, But Withdrawn Because Of
  Poor 2005-2007 Data.
• EPA Has Proposed To Name The Area Subpart II
  Moderate Nonattainment.
• Working To Resubmit A Bid For Redesignation To
  Attainment (2007-2009 Data) ASAP
• Will Be A High Hurdle To Leap

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Memphis Area1997 Ozone Standard

• EPA bumped up the area to a Subpart II Moderate
  8-Hour Ozone Nonattainment Area.
• A SIP demonstrating attainment by June 15, 2010
  was due to EPA in March 2009.
• The local program was able to submit a bid for
  redesignation of the area to attainment because
  of clean data for the 2006-2008 monitoring
  period.
• EPA indicates approval is imminent.

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Analysis of A More Stringent 8 Hour Ozone NAAQS

• 1997 Standard - 84 ppb
• 2008 Standard - 75 ppb
• Voluntary Remand Taken By EPA
• 60 to 70 ppb?
• http//www.epa.gov/air/ozonepollution/pdfs/O3_Reco
  nsideration_FACT20SHEET_091609.pdf

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(No Transcript)
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O3 Implementation Timeline
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PM2.5 NAAQS

• Annual Standard (15µg/m3)
• Daily Standard (35µg/m3)

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(No Transcript)
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PM2.5 SIPsAnnual Standard

• Greater Knoxville Area
• Presented to state air board on April 4, 2008
• Approved and submitted to EPA same day
• Greater Chattanooga Area
• Being prepared by the Chattanooga local air
  program with oversight by TDEC-APC
• Includes portions of GA AL
• Board adopted on October 14, 2009

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EPA Region 4 PM2.5 24 Hour NAAQS Nonattainment
Designations
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EPA National PM2.5 24 Hour NAAQS Nonattainment
Designations
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Lead NAAQS

• Theres A New Standard In Town
• Old Standard 1.5 ug/m3
• New Standard 0.15 ug/m3
• Link To EPA Fact Sheet For More Information
• http//epa.gov/air/lead/pdfs/20081015pbfactsheet.p
  df

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Ambient Air Monitoring For Lead May Be Expanded

• Link To EPA Fact Sheet Explaining EPAs
  Reconsideration Of The Lead Monitoring Rule
• http//epa.gov/air/lead/pdfs/leadMonitoringReconsi
  derationFSs.pdf

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Tennessees Recommendation For Lead Nonattainment
Areas
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Graphic Of Proposed Sullivan County Partial Lead
Nonattainment Area
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Questions?
Quincy Styke III [phone]