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VISTAS Monitoring RPO National Technical Meeting June 8, 2005 Denver, Colorado

This technical meeting presented data on local air quality conditions, gas, and particulate matter concentrations. The focus was on continuous monitoring, methods evaluation, and data availability for model assessment. The deliverables included verified and normalized data for further analysis.

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VISTAS Monitoring RPO National Technical Meeting June 8, 2005 Denver, Colorado

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  1. VISTAS Monitoring RPO National Technical Meeting June 8, 2005 Denver, Colorado Cape Romain National Wildlife Refuge

  2. VISTAS Focus Sites Great Smoky Mtns. Raleigh Atlanta Cape Romain CLASS 1 URBAN

  3. VISTAS Focus Sites Great Smoky Mtns. Raleigh Atlanta Cape Romain CLASS 1 URBAN SEARCH

  4. Focus Site Data • Objectives: • Create as complete a record as possible of local conditions, gas, fine particulate mass and component concentrations at source and receptor sites. • Make the data available for use in model evaluation. • Evaluate the continuous methods used for comparability with existing networks. • Responsibility:States, Contractors • Deliverables: • Verified data in AQS • Normalized data on VISTAS site

  5. Focus Sites Cape Romain - Cape Romain NWR, SC Cape Romain- May 2004

  6. Focus Sites Look Rock - Great Smoky Mountains NP, TN Look Rock - GRSM

  7. Focus Sites Millbrook – Raleigh, NC Millbrook - April 2004 Cape Romain- May 2004

  8. Focus Sites March 2003 - December 2004 • Continuous monitoring: • Sulfate, Nitrate, Carbon • Precursor gases - SO2, NOy, CO • Continuous Mass • Scattering (at the Class 1 area sites) • Meteorology • Alternative methods • Filter Speciation: IMPROVE and STN

  9. Third Quarter 2003

  10. Third Quarter 2003 MASS SULFATE

  11. Focus Sites • Objectives: • Evaluate the continuous methods used for comparability with existing networks. • Collocated with IMPROVE or STN • ‘Alternative’ methods at Millbrook • SEARCH Sulfate, Nitrate (plus ammonium) • TVA/Harvard Sulfate at Look Rock • Aethalometers at all sites

  12. Filter comparisonsMass - IMPROVE

  13. Filter comparisonsMass – STNRVE

  14. Filter comparisonsSulfate – STNRVE

  15. Filter comparisonsSulfate - IMPROVE

  16. Filter comparisonsSulfate - IMPROVE

  17. Continuous to Filter ratioSulfate

  18. Continuous to Filter ratioSulfate

  19. Continuous to Filter ratioNitrate

  20. Filter comparisonsNitrate - IMPROVE

  21. Filter comparisonsNitrate - IMPROVE

  22. Filter comparisonsNitrate - STNRAVE 3.15

  23. Filter comparisonsCarbon - IMPROVE

  24. Filter comparisonsCarbon - IMPROVE

  25. Focus Sites • Objectives: • Make the data available for use in model evaluation.

  26. Data Completeness2003 Data in AQS 05/18/2005 update

  27. Data Completeness2004 Data in AQS 05/18/2005 update

  28. Focus Site Data Normalization

  29. Focus Site Data Normalization

  30. Focus Site Data Normalization Comparison of Millbrook ‘raw’ and Normalized data Provides another opportunity for validation

  31. Third Quarter 2003 MASS SULFATE

  32. Focus Site Data Normalization • Must have filter data • IMPROVE - ~1 year • STN- ~4 months STN protocol sampler added at Cape Romain Site April 2004 • Comparison of IMPROVE and STN at a rural site

  33. Focus Sites • Objectives: • Evaluate the continuous methods used for comparability with existing networks. • Collocated with IMPROVE or STN • ‘Alternative’ methods at Millbrook • SEARCH Sulfate, Nitrate (plus ammonium) • TVA/Harvard Sulfate at Look Rock • Aethalometers at all sites

  34. July 2004 Diurnal Sulfate and Ammonium Raw Unadjusted Data Millbrook, NC VISTAS Focus Site 7.00 6.00 5.00 4.00 RPSO4 RPSO4, Alt SO4, Alt NH4 - ug/m3 ALT SO4 3.00 2.00 1.00 0.00 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Hour of Day Sulfate alternative methodMillbrook Preliminary Data Summary Millbrook July,2003-August 2004

  35. Focus Sites • Objectives: • Routine operation in State Networks • Monitors require more attention. • Heavier data management load than criteria monitors. • SC and NC plan to continue to operate to meet specific state or regional objectives. • May need collocated filter analysis.

  36. Focus project status • Data collection phase ended January 1, 2005 • Verification and posting of raw data to AQS • Normalization… • Final Reports.. • SC and NC have continued some monitoring • Supporting data for VISTAS work at ROMA • Investigations of PM composition in NC urban areas

  37. At this point…. • Continuous monitors provide qualitative information • Comparable between sites and methods • BUT… • Filter data is needed to improve correlation between the continuous data and the ‘Standard’ (filter analysis)

  38. Sources of Organic Carbon • Objectives: • Identify sources of primary organic carbon (OC) • Estimate relative contributions from source categories to primary OC • Infer contribution of secondary OC to total Carbon mass • Phase 1 – Collection • Phase 2 – Analysis

  39. VISTAS CMB Sites SHEN MACA Millbrook GSRM ROMA CLASS 1 URBAN SEARCH

  40. Cape Romain- May 2004

  41. Sources of Organic Carbon • Phase 1 - Collection • Responsibilities: • States, NPS- Install and operate samplers • Contractor- Provide filter prep, management and storage. Perform initial analysis of filters and blanks • Deliverables: • High volume PM2.5 samplers installed at 5 sites • Sample collection – May 2004 through May 2005 • Sample prep and storage – ongoing.. • Initial analysis

  42. Sources of Organic Carbon • Initial analysis • Blanks OK ? • Enough Sample ? • 34 Alkanes • 60 Polars • 37 Hopanes and Steranes • 20 PAHs

  43. Sources of Organic Carbon • Initial analysis

  44. Sources of Organic Carbon • Initial analysis • Blanks OK ? Yes, but need to watch filter handling... • Enough Sample ? Yes, but more, better.. Increase extracted portion of filter from 1/2 to 3/4.

  45. HiVol comparison - STN

  46. Sources of Organic Carbon • Phase 2 - Analysis • Responsibilities: Contractor- • Perform analysis of filters and blanks • Perform data and source attribution analysis • Report • Deliverables: • Quarterly analysis of selected filters • Exploratory analysis - Principal Component Analysis, Positive Matrix Factorization, Cluster Analysis • Compile source profiles • Apply receptor model (CMB) • Report Dec 2005

  47. Sources of Organic Carbon • Phase 2a – Interlab Comparison • VISTAS and SEARCH • Perform analysis of split filters and blanks

  48. Sources of Organic Carbon • Phase x – C14 Analysis • Approximately 250 of 600 samples cut for chemical analysis • Remaining ¼ of the filter sufficient for C14 analysis • Planning intercomparison with SEARCH

  49. At this point…. • Most of the collection work is done • Finalize proces for C14 selection and analysis • get the data out

  50. Purchase Knob, Great Smoky Mountains National Park

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