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National Wildlife Refuge
VISTAS Monitoring RPO National Technical Meeting June 8, 2005 Denver, Colorado Cape Romain National Wildlife Refuge
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VISTAS Focus Sites Great Smoky Mtns. Raleigh Atlanta Cape Romain
VISTAS determined in 2002 that the region needed to develop speciated PM2.5 data with high temporal resolution (hourly or less) for purposes of model performance evaluation. Sites selected based on availability of funding and availability of suite of companion meteorological and air quality data. Four Focus sites were identified, three are being funded currently. These are Look Rock in Great Smoky Mtns National Park, Cape Romain Wilderness Area, and Millbrook outside Raleigh, NC. CLASS 1 URBAN
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VISTAS Focus Sites Great Smoky Mtns. Raleigh Atlanta Cape Romain
VISTAS determined in 2002 that needed to develop speciated PM2.5 data with high temporal resolution (hourly or less) for purposes of model performance evaluation. Sites selected based on availability of funding and availability of suite of companion meteorological and air quality data. Four Focus sites were identified, three are being funded currently. These are Look Rock in Great Smoky Mtns National Park, Cape Romain Wilderness Area, and Millbrook outside Raleigh, NC. CLASS 1 URBAN SEARCH
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Focus Site Data Objectives: Responsibility: States, Contractors
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
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Cape Romain - Cape Romain NWR, SC
Focus Sites Cape Romain - Cape Romain NWR, SC 6-10 ft - 3 M Cape Romain- May 2004
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Look Rock - Great Smoky Mountains NP, TN
Focus Sites Look Rock - Great Smoky Mountains NP, TN ~ 2670 ft M Look Rock - GRSM
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Focus Sites Millbrook – Raleigh, NC Millbrook - April 2004
Cape Romain- May 2004
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Focus Sites Continuous monitoring: Filter Speciation: IMPROVE and STN
March 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
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Third Quarter 2003 E/W Difference- ~8/12 CR diff 8/26 Mass same 9/20
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Third Quarter 2003 MASS SULFATE
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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 Search Sulfate- Modified Harvard TVA Harvard - ~1 month SEARCH FRM- Particulate Composition Monitor( PCM) and Dichot
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Filter comparisons Mass - IMPROVE
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Filter comparisons Mass – STNRVE
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Filter comparisons Sulfate – STNRVE
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Filter comparisons Sulfate - IMPROVE
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Filter comparisons Sulfate - IMPROVE
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Continuous to Filter ratio Sulfate
Something after 9/28?
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Continuous to Filter ratio Sulfate
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Continuous to Filter ratio Nitrate
Nitrate and Sulfate from same module
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Filter comparisons Nitrate - IMPROVE
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Filter comparisons Nitrate - IMPROVE
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Filter comparisons Nitrate - STNRAVE
3.15
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Filter comparisons Carbon - IMPROVE
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Filter comparisons Carbon - IMPROVE
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Focus Sites Objectives:
Make the data available for use in model evaluation. Differences in instrument types,individual instruments and changes in performance and effect on ability to ‘mimic’ filter results
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Data Completeness 2003 Data in AQS
05/18/2005 update
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Data Completeness 2004 Data in AQS
05/18/2005 update
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Focus Site Data Normalization
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Focus Site Data Normalization
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Focus Site Data Normalization
Comparison of Millbrook ‘raw’ and Normalized data Provides another opportunity for validation
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Third Quarter 2003 MASS SULFATE
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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
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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
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Sulfate alternative method Millbrook
July 2004 Diurnal Sulfate and Ammonium Raw Unadjusted Data Millbrook, NC VISTAS Focus Site 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 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 RPSO4, Alt SO4, Alt NH4 - ug/m3 RPSO4 ALT SO4 Preliminary Data Summary Millbrook July,2003-August 2004
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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.
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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
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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)
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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
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VISTAS CMB Sites SHEN MACA Millbrook GSRM ROMA
VISTAS determined in 2002 that needed to develop speciated PM2.5 data with high temporal resolution (hourly or less) for purposes of model performance evaluation. Sites selected based on availability of funding and availability of suite of companion meteorological and air quality data. Four Focus sites were identified, three are being funded currently. These are Look Rock in Great Smoky Mtns National Park, Cape Romain Wilderness Area, and Millbrook outside Raleigh, NC. CLASS 1 URBAN SEARCH
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6-10 ft - 3 M Cape Romain- May 2004
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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
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Sources of Organic Carbon
Initial analysis Blanks OK ? Enough Sample ? 34 Alkanes 60 Polars 37 Hopanes and Steranes 20 PAHs
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Sources of Organic Carbon
Initial analysis
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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.
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HiVol comparison - STN
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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 Principal Component Analysis, Positive Matrix Factorization, Cluster Analysis
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Sources of Organic Carbon
Phase 2a – Interlab Comparison VISTAS and SEARCH Perform analysis of split filters and blanks Principal Component Analysis, Positive Matrix Factorization, Cluster Analysis
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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 Principal Component Analysis, Positive Matrix Factorization, Cluster Analysis
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At this point…. Most of the collection work is done
Finalize proces for C14 selection and analysis get the data out
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Great Smoky Mountains National Park
Purchase Knob, Great Smoky Mountains National Park
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