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Wisconsin FDMS - FDMS-TEOM Network Review Analysis EPA Region 5 Contacts Meeting March 7, 2007

Wisconsin FDMS - FDMS-TEOM Network Review Analysis EPA Region 5 Contacts Meeting March 7, 2007 Steve Schuenemann & Bart Sponseller. Wisconsin FDMS-TEOM Network Review Analysis. Purpose Analyze available FDMS-TEOM information to support QMP and/or SOP revision Goal

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Wisconsin FDMS - FDMS-TEOM Network Review Analysis EPA Region 5 Contacts Meeting March 7, 2007

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  1. Wisconsin FDMS - FDMS-TEOM Network Review Analysis • EPA Region 5 Contacts Meeting • March 7, 2007 • Steve Schuenemann & Bart Sponseller

  2. Wisconsin FDMS-TEOM Network Review Analysis • Purpose • Analyze available FDMS-TEOM information to support QMP and/or SOP revision • Goal • FDMS-TEOM network that provides • accurate & reliable continuous PM measurements as a basis for Air Quality forecasting • data comparable to FRM gravimetric method • continuous PM measurements that are comparable: statewide, regionally and nationally • Reasons for the 2006 FDMS-TEOM Network Review • Network inconsistency • Certain monitors tracked closely to the FRM method, while others were 70% to 90% high or low • Noticed “individuality” of monitors; exhibited unique “behavioral” characteristics • Changes in configuration of all monitors over time resulted in poor intersite comparability • Regional Equivalency • Air quality watches/advisories based on reported FDMS-TEOM measurements

  3. Wisconsin PM2.5 FDMS-TEOM Monitoring Network 2006 Perkinstown Somerset Green Bay Manitowoc ( Harr. Beach Mayville Devils Lake Madison Milw-DNR SERHQ Waukesha -Cleve. Milw-FAA Chiwaukee

  4. Data Comparison Approaches • Approaches • Compare FDMS-TEOM to FRM • Compare FDMS-TEOM to FDMS-TEOM – multi-site • Consider age of transducers & other components • Consider operator: hands-on or leave it be • Consider location • Urban vs Rural • Near Lake Michigan vs Inland • Track major equipment changes e.g. dryer replacement

  5. FDMS-TEOM Tracking

  6. Rural Location – hilltop 40 miles west of Lake Michigan FDMS-TEOM/FRM Comparison Rural Location in SW Wisconsin

  7. FDMS-TEOM/FRM Comparison Urban/Industrial Location – 17 miles west of Lake Michigan Urban/Highway Location – near Lake Michigan

  8. FDMS-TEOM/FRM Comparison Rural Location – Lake Michigan shoreline

  9. FDMS-TEOM/FRM Comparison Rural – Northwestern WI – national forest Rural – Lake Michigan shoreline

  10. FDMS-TEOM Comparison

  11. FDMS-TEOM & FRM Comparison

  12. FDMS B & Dryer Installations

  13. Conclusions • Dryer reconditioning/replacement is critical. • High FDMS-TEOM values at Waukesha, FAA & Manitowoc were likely high due to moisture • Noticed potential failing dryers at other sites • Results of analysis have guided FDMS-TEOM SOP development • SOP will require annual preventive maintenance schedule each spring prior to O3 season.

  14. Questions? • Why are FDMS-TEOM values now consistently lower than FRM at FAA & SER/HQ? • Would operating a FDMS-TEOM with a failed dryer have an impact on other components? Would it cause excess wear & deterioration of other parts such as sensors or valves? • What do high - & + volatile channel values tell us?

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