Fine particulate matter sip for washington dc
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Fine Particulate Matter SIP for Washington DC. Special Stakeholder Meeting February 20, 2008. Discussion Topics. Background Air Quality Trends SIP Content Modeling Results Local Emissions Trends Conclusions. PM 2.5 SIP Background. Standards - 15 µg/m 3 (annual) & 65 µg/m 3 (daily)

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Fine Particulate Matter SIP for Washington DC

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Fine particulate matter sip for washington dc

Fine Particulate Matter SIP for Washington DC

Special Stakeholder Meeting

February 20, 2008


Discussion topics

Discussion Topics

  • Background

  • Air Quality Trends

  • SIP Content

  • Modeling Results

  • Local Emissions Trends

  • Conclusions


Pm 2 5 sip background

PM2.5 SIP Background

  • Standards - 15 µg/m3(annual)& 65 µg/m3 (daily)

  • DC area designated nonattainment in 2004

    • All NOVA monitors in compliance

    • Influence on DC cited for inclusion

  • Monitored air quality continues to improve

  • SIP process began - Spring 2007

  • Draft SIP completed – Dec 2007

  • Public review/comment – Jan 2008


Air quality annual standard

Air Quality – Annual Standard

13.9


Air quality new daily standard

Air Quality – New Daily Standard

34


Sip content results

SIP Content & Results

  • Combination emission reduction measures

    • Local point, mobile, & nonroad reductions

    • Significant regional reductions of SO2 & NOX

  • Attainment demonstrated by 2009 using regional modeling

    • Results consist with other modeling efforts

  • All other SIP requirements met

    • RACM analysis

    • Conformity budgets

    • Contingency measures


Baseline attainment status annual standard

Nonattainment

Attainment

Baseline Attainment StatusAnnual Standard


Current future status annual standard

Nonattainment

Attainment

Current & Future StatusAnnual Standard


Current attainment status 2006 daily standard

Nonattainment

Attainment

Current Attainment Status2006 Daily Standard


Future predicted status 2006 daily standard

Nonattainment

Attainment

Future Predicted Status2006 Daily Standard


Mirant prgs emission trends

Mirant PRGS Emission Trends


Local emissions reductions nova point sources

Local Emissions Reductions NOVA Point Sources

SO2: - 32,935 TPY

NOX: - 8,749 TPY


Conclusions

Conclusions

  • DC area has a more than adequate monitoring network

  • Entire area currently monitoring attainment with annual standard

  • No EPA defined “hotspots” exist

  • Model predicted attainment of all standards by 2009

  • Complete & fully approvable SIP


Local area analysis laa

Local Area Analysis (LAA)

  • Perceived local “hotspot” at PRGS

  • Onsite monitoring underway

  • No monitored evidence of hotspot exists

  • LAA not required by EPA guidance

  • Comprehensive permit for PRGS in process

  • Bottom line – permit the appropriate mechanism to resolve any local issues


Mirant prgs monitoring

Mirant PRGS Monitoring

  • PM2.5 FRM

  • PM2.5 Continuous

  • PM2.5 EBAM

  • Two SO2 Monitors

  • Results to date consistent with attainment (2007)

    • Annual: 13.5

    • Daily: 32


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