1 / 26

BAM-1020 PM 2.5 Federal Equivalent Method Monitor

BAM-1020 PM 2.5 Federal Equivalent Method Monitor. David Gobeli, Ph.D. April 11, 2008. Update (4/08). BAM-1020 PM 2.5 FEM designation application successfully completed by Met One BAM-1020 PM 2.5 FEM published in Federal Register 3/08 as Class III Equivalent Method EQPM-0308-170

marva
Télécharger la présentation

BAM-1020 PM 2.5 Federal Equivalent Method Monitor

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. BAM-1020 PM2.5 Federal Equivalent Method Monitor David Gobeli, Ph.D. April 11, 2008

  2. Update (4/08) • BAM-1020 PM2.5 FEM designation application successfully completed by Met One • BAM-1020 PM2.5 FEM published in Federal Register 3/08 as Class III Equivalent Method • EQPM-0308-170 • Manual is being updated to reflect these changes

  3. Background • 40CFR §53 revised in October, 2006 • No Coarse (PM10-2.5) Standard • Very unexpected change of course • US network will be minimal (~75 sites total, probably far fewer with automatic monitors) • At least 5 years before issue is revisited. • 1987 PM10 regulations reaffirmed • Detailed designation procedures developed for automatic (Class III) PM2.5 monitors

  4. New Regulations 40 CFR §53 • Expect PM monitoring sites currently using Federal Reference Method (FRM) samplers to be replaced with continuous monitors after PM2.5 FEM monitors become available. • US-EPA is encouraging development of particulate speciation samplers for PM10-2.5 fraction

  5. PM2.5 Comparability Test Protocol • 5 Test Campaigns • 3 Winter • 2 Summer • Triplicate BAM-1020 and Triplicate FRM • Minimum 23 Valid Days of Data • 46 Valid Days for Winter/Summer Site • Strict criteria for multiplicative (slope), additive (intercept) bias and precision

  6. PM2.5 Comparability Test Protocol • Only single-channel FRM samplers allowed (BGI PQ-200) • 23-hour “day” • Filters retrieved, equipment serviced during one-hour daily downtime • “Days” did not start at midnight • All protocol pre-approved by EPA

  7. New Haven CT Allen Park MI Logan UT Bakersfield CA

  8. Allen Park, MI

  9. Logan, UT

  10. Bakersfield, CA

  11. New Haven, CT

  12. BAM-1020 PM2.5 FEM Status • PM2.5 Designation published to Federal Register in 3/08 • EQPM-0308-170

  13. Comparability of Candidate and FRM Methods* 50 y = 0.973x + 0.1285 45 40 35 Candidate method concentration, mg/m3 30 25 20 15 10 5 0 0 10 20 30 40 50 FRM concentration, mg/m3 Logan, UT Winter

  14. Logan, UT Winter

  15. Comparability of Candidate and FRM Methods* 45 y = 0.9404x - 0.9552 40 35 30 Candidate method concentration, mg/m3 25 20 15 10 5 0 0 10 20 30 40 50 FRM concentration, mg/m3 Allen Park, MI Winter

  16. Allen Park, MI Winter

  17. Comparability of Candidate and FRM Methods* 120 y = 0.9698x - 0.7541 100 80 Candidate method concentration, mg/m3 60 40 20 0 0 20 40 60 80 100 120 FRM concentration, mg/m3 Bakersfield, CA Winter/Summer

  18. Bakersfield CARB FRM vs. Average of BAM-1020

  19. Bakersfield CA Winter/Summer

  20. Comparability of Candidate and FRM Methods* 60 y = 1.02x + 0.5854 50 40 Candidate method concentration, mg/m3 30 20 10 0 0 10 20 30 40 50 60 FRM concentration, mg/m3 New Haven, CT - Summer

  21. New Haven, CT Summer

  22. Test Summary • All slopes/intercepts almost identical • No geographical influence • No seasonal influence • Changes to BAM-1020 required to meet new designation rules are relatively modest • No increased complexity • No site specific calibration factors

  23. Upgrade Path • BAM-1020 monitors sold after 1/1/07 are in FEM PM2.5 configuration • BAM-1020 monitors sold before 1/1/07 may be upgradeable to FEM PM2.5 configuration • A generous trade in allowance will be offered on units more than 3-4 years old

  24. BAM-1020 FEM Specifications

More Related