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Status of Fairfax County Air Quality Monitors

Status of Fairfax County Air Quality Monitors. Sunil Kumar AQPAC Meeting COG March 16, 2009. Fairfax Monitors. Total :– 5 Ozone, 3 FRM, 1 TEOM monitors Monitor Location Monitor Type Owned/Operated by Cub Run (Chantilly) - Ozone FxCo/FxCo Lewinsville (McLean) – Ozone FxCo/FxCo

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Status of Fairfax County Air Quality Monitors

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  1. Status of Fairfax County Air Quality Monitors Sunil Kumar AQPAC Meeting COG March 16, 2009

  2. Fairfax Monitors Total :– 5 Ozone, 3 FRM, 1 TEOM monitors Monitor Location Monitor Type Owned/Operated by Cub Run (Chantilly) - Ozone FxCo/FxCo Lewinsville (McLean) – Ozone FxCo/FxCo Mount Vernon - Ozone FxCo/FxCo Annandale – Ozone, TEOM FxCo/FxCo Annandale – FRM VDEQ/FxCo Lewinsville (McLean) – FRM VDEQ/FxCo Lee Park (Franconia) – FRM VDEQ/FxCO Lee Park (Franconia) – Ozone VDEQ/VDEQ

  3. Fairfax County Proposal Discontinue county operated monitors - Budgetary constraints Monitor Location Monitor Type Owned/Operated by Cub Run (Chantilly) - Ozone FxCo/FxCo Lewinsville (McLean) – Ozone FxCo/FxCo Mount Vernon - Ozone FxCo/FxCo Annandale – Ozone, TEOM FxCo/FxCo Annandale – FRM VDEQ/FxCo Lewinsville (McLean) – FRM VDEQ/FxCo Lee Park (Franconia) – FRM VDEQ/FxCO Lee Park (Franconia) – Ozone VDEQ/VDEQ

  4. Fairfax Monitor Locations Ozone, FRM Ozone Ozone, TEOM, FRM Ozone, FRM Ozone

  5. Fairfax monitors – Importance of data Monitor ozone and fine particle concentrations in highly populated areas Data used by the general public, federal, state and local air agencies for : Air quality evaluation Calculating design values Forecasting and issuing health advisories

  6. Fairfax monitors – Importance of forecasting & health alerts Daily data used for issuing next 3 day forecasting and color-coded health alerts. AQ data page - 1.5 million hits (ozone season). People check data to determine if they need to alter their daily activities due to poor air quality.

  7. Fairfax monitors – Historical 8-Hour Ozone Design Values 2008 data draft Courtesy - Thomas Ballou, VDEQ (MWAQC, February 25, 2009)

  8. Fairfax monitors – Historical Annual PM2.5 Design Values 2008 data draft

  9. Fairfax monitors – Historical 24-Hour PM2.5 Design Values 2008 data draft

  10. Fairfax monitors – Regulatory Aspects of Discontinuation Network assessments every five years Network plan submitted to EPA after public comment for their approval EPA Reg. - monitor measuring NAAQS violations in previous five years may not be discontinued (CFR 40 Part 58, Subpart B §58.14)

  11. Fairfax county schedules Public comment on budget proposal : March30-April 1 Final budget decision : April 27 Proposed monitoring shutdown : July 1

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